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Spanish verb conjugation

Acaecer conjugation

acaecer is an irregular Spanish -ER verb meaning occur. In the present tense: yo acaezco, tú acaeces, él/ella acaece, nosotros acaecemos, vosotros acaecéis, ellos acaecen. Full conjugation across 18 tenses below.

Rank #2680-ERIrregular18 tense tables
At a glance
Infinitive
acaecer
Gerundio
acaeciendo
Meaning
occur
Pattern
Irregular
Difficulty
Level 3
Practice this verb
Conjugation tables

Acaecer across the MuyVerbs tense system

Non-finite forms

Infinitivo and Gerundio

Study present continuous
FormSpanishUse
InfinitivoacaecerDictionary form and base form for many compound structures.
GerundioacaeciendoUsed with estar for progressive forms, for example estar acaeciendo.

Presente

Present

Study tense
PronounFormContext
yoacaezco
Yo acaezco solo como forma rara en libros viejos.I occur only as a rare form in old books.
acaeces
A menudo, tú acaeces en ejemplos de gramatica historica.You often occur in examples from historical grammar.
élacaece
La forma vieja del verbo acaece en alguna cronica polvorienta.The old form of the verb occurs in the odd dusty chronicle.
nosotrosacaecemos
A veces, nosotros acaecemos mas en manuales que en la calle.At times, we occur more in manuals than in the street.
vosotrosacaecéis
Vosotros acaecéis casi nunca fuera de textos solemnes.You all occur almost never outside solemn texts.
ellosacaecen
Muchas veces, las formas viejas del verbo acaecen sobre todo en paginas muy antiguas.Many times, the old forms of the verb occur mostly on very old pages.

Pretérito Perfecto

Present Perfect

Study tense
PronounFormContext
yohe acaecido
Este año, yo he acaecido en notas al pie de ediciones criticas.This year, I have occurred in footnotes to critical editions.
has acaecido
Últimamente, tú has acaecido en citas de cronistas del siglo de oro.Lately, you have occurred in quotations from chroniclers of the golden age.
élha acaecido
En estos meses, la forma vieja del verbo ha acaecido en comparaciones con verbos ya caidos.In these months, the old form of the verb has occurred in comparisons with verbs that have already fallen away.
nosotroshemos acaecido
Hasta ahora, nosotros hemos acaecido en articulos sobre lengua clasica.So far, we have occurred in articles about classical language.
vosotroshabéis acaecido
En estas semanas, vosotros habéis acaecido en repertorios de formas olvidadas.In these weeks, you all have occurred in collections of forgotten forms.
elloshan acaecido
En este tiempo, las formas viejas del verbo han acaecido en listas de verbos poco vivos.During this time, the old forms of the verb have occurred in lists of verbs with little life left.

Pretérito Indefinido

Preterite

Study tense
PronounFormContext
yoacaecí
Ayer, yo acaecí en comentarios de filologia hispanica.Yesterday, I occurred in comments on Hispanic philology.
acaeciste
Hace un rato, tú acaeciste en ejemplos que nadie usa hablando.A little while ago, you occurred in examples that nobody uses in speech.
élacaeció
Esta mañana, la forma vieja del verbo acaeció en discusiones sobre arcaismos extremos.This morning, the old form of the verb occurred in arguments about extreme archaisms.
nosotrosacaecimos
Anoche, nosotros acaecimos en gramaticas con olor a biblioteca.Last night, we occurred in grammars that smell of libraries.
vosotrosacaecisteis
El sábado, vosotros acaecisteis en resenas de textos medievales.On Saturday, you all occurred in reviews of medieval texts.
ellosacaecieron
Hace poco, las formas viejas del verbo acaecieron en apuntes de historia de la lengua.Not long ago, the old forms of the verb occurred in notes on the history of the language.

Pretérito Imperfecto

Imperfect

Study tense
PronounFormContext
yoacaecía
Antes, yo acaecía solo como forma rara en libros viejos, tras otro cambio de planes.Before, I used to occur only as a rare form in old books, after another change of plan.
acaecías
Por entonces, tú acaecías en ejemplos de gramatica historica, aunque el suelo seguia humedo.Back then, you used to occur in examples from historical grammar, although the ground was still damp.
élacaecía
En esa época, la forma vieja del verbo acaecía en alguna cronica polvorienta, mientras el ruido no paraba.At that time, the old form of the verb used to occur in the odd dusty chronicle, while the noise would not stop.
nosotrosacaecíamos
Cuando eso era normal, nosotros acaecíamos mas en manuales que en la calle, antes del siguiente turno.When that was normal, we used to occur more in manuals than in the street, before the next shift.
vosotrosacaecíais
Hace años, vosotros acaecíais casi nunca fuera de textos solemnes, con una calma bastante falsa.Years ago, you all used to occur almost never outside solemn texts, with a very false sense of calm.
ellosacaecían
En aquellos días, las formas viejas del verbo acaecían sobre todo en paginas muy antiguas, sin perder otro minuto.In those days, the old forms of the verb used to occur mostly on very old pages, without losing another minute.

Pretérito Pluscuamperfecto

Past Perfect

Study tense
PronounFormContext
yohabía acaecido
Cuando llegaste, yo ya había acaecido en notas al pie de ediciones criticas, cuando el aire ya pesaba.When you arrived, I had already occurred in footnotes to critical editions, as the air was already getting heavy.
habías acaecido
Para entonces, tú ya habías acaecido en citas de cronistas del siglo de oro, aunque nadie daba mas pistas.By then, you had already occurred in quotations from chroniclers of the golden age, although nobody was giving any more clues.
élhabía acaecido
Al volver, la forma vieja del verbo ya había acaecido en comparaciones con verbos ya caidos, con margen cada vez mas corto.When we came back, the old form of the verb had already occurred in comparisons with verbs that have already fallen away, with less and less room to spare.
nosotroshabíamos acaecido
Antes de hablarlo, nosotros ya habíamos acaecido en articulos sobre lengua clasica, mientras seguia la misma fila.Before talking it through, we had already occurred in articles about classical language, while the same line kept moving.
vosotroshabíais acaecido
Cuando mirasteis otra vez, vosotros ya habíais acaecido en repertorios de formas olvidadas, antes de que cerraran todo.When you looked again, you all had already occurred in collections of forgotten forms, before everything shut down.
elloshabían acaecido
Para ese momento, las formas viejas del verbo ya habían acaecido en listas de verbos poco vivos, despues de una espera larguisima.By that moment, the old forms of the verb had already occurred in lists of verbs with little life left, after an extremely long wait.

Pretérito Anterior

Preterite Anterior

Study tense
PronounFormContext
yohube acaecido
Apenas yo hube acaecido en comentarios de filologia hispanica, con todo el mundo mirando, todo cambió.As soon as I had occurred in comments on Hispanic philology, with everyone watching, everything changed.
hubiste acaecido
En cuanto tú hubiste acaecido en ejemplos que nadie usa hablando, aunque quedaba trabajo pendiente, se notó.The moment you had occurred in examples that nobody uses in speech, although there was still work left, it showed.
élhubo acaecido
No bien la forma vieja del verbo hubo acaecido en discusiones sobre arcaismos extremos, sin dejarlo para mas tarde, hubo ruido.As soon as the old form of the verb had occurred in arguments about extreme archaisms, without putting it off any longer, there was trouble.
nosotroshubimos acaecido
Tan pronto como nosotros hubimos acaecido en gramaticas con olor a biblioteca, con el reloj ya apretando, seguimos adelante.Once we had occurred in grammars that smell of libraries, with the clock already pressing, we moved on.
vosotroshubisteis acaecido
Apenas vosotros hubisteis acaecido en resenas de textos medievales, aunque el sitio seguia revuelto, mirasteis el resultado.As soon as you all had occurred in reviews of medieval texts, although the place was still a mess, you checked the result.
elloshubieron acaecido
En cuanto las formas viejas del verbo hubieron acaecido en apuntes de historia de la lengua, mientras todos iban con prisa, el ambiente cambió.The moment the old forms of the verb had occurred in notes on the history of the language, while everyone was in a hurry, the mood changed.

Futuro

Future

Study tense
PronounFormContext
yoacaeceré
Mañana, yo acaeceré solo como forma rara en libros viejos, antes de oir el segundo timbre.Tomorrow, I will occur only as a rare form in old books, before the second bell rang.
acaecerás
Dentro de poco, tú acaecerás en ejemplos de gramatica historica, despues de moverlo todo otra vez.Soon, you will occur in examples from historical grammar, after moving everything around again.
élacaecerá
Esta tarde, la forma vieja del verbo acaecerá en alguna cronica polvorienta, sin cambiar de idea a mitad.This afternoon, the old form of the verb will occur in the odd dusty chronicle, without changing course halfway through.
nosotrosacaeceremos
La semana que viene, nosotros acaeceremos mas en manuales que en la calle, cuando la luz ya bajaba.Next week, we will occur more in manuals than in the street, as the light was already fading.
vosotrosacaeceréis
Pronto, vosotros acaeceréis casi nunca fuera de textos solemnes, porque hacia falta resolverlo ya.Before long, you all will occur almost never outside solemn texts, because it had to be dealt with at once.
ellosacaecerán
Más adelante, las formas viejas del verbo acaecerán sobre todo en paginas muy antiguas, con la ventana todavia abierta.Later on, the old forms of the verb will occur mostly on very old pages, with the window still open.

Futuro Perfecto

Future Perfect

Study tense
PronounFormContext
yohabré acaecido
Para entonces, yo ya habré acaecido en notas al pie de ediciones criticas, tras una manana bastante larga.By then, I will already have occurred in footnotes to critical editions, after a fairly long morning.
habrás acaecido
Antes del cierre, tú ya habrás acaecido en citas de cronistas del siglo de oro, aunque seguia el mismo desorden.Before closing time, you will already have occurred in quotations from chroniclers of the golden age, although the same disorder was still there.
élhabrá acaecido
Al final del día, la forma vieja del verbo ya habrá acaecido en comparaciones con verbos ya caidos, mientras alguien pedia otra cosa.By the end of the day, the old form of the verb will already have occurred in comparisons with verbs that have already fallen away, while someone else was asking for something new.
nosotroshabremos acaecido
Para mañana, nosotros ya habremos acaecido en articulos sobre lengua clasica, antes de que llegara mas gente.By tomorrow, we will already have occurred in articles about classical language, before more people arrived.
vosotroshabréis acaecido
Antes de iros, vosotros ya habréis acaecido en repertorios de formas olvidadas, con una tension dificil de esconder.Before leaving, you all will already have occurred in collections of forgotten forms, with a tension that was hard to hide.
elloshabrán acaecido
Para esa hora, las formas viejas del verbo ya habrán acaecido en listas de verbos poco vivos, sin volver sobre lo mismo.By that hour, the old forms of the verb will already have occurred in lists of verbs with little life left, without going back over the same point.

Condicional

Conditional

Study tense
PronounFormContext
yoacaecería
En un caso así, yo acaecería en comentarios de filologia hispanica, cuando el pasillo seguia lleno.In a case like that, I would occur in comments on Hispanic philology, while the hallway was still crowded.
acaecerías
Con un poco más de tiempo, tú acaecerías en ejemplos que nadie usa hablando, aunque nadie lo puso facil.With a little more time, you would occur in examples that nobody uses in speech, although nobody made it easy.
élacaecería
En esa situación, la forma vieja del verbo acaecería en discusiones sobre arcaismos extremos, con muy poco hueco para maniobrar.In that situation, the old form of the verb would occur in arguments about extreme archaisms, with very little room to manoeuvre.
nosotrosacaeceríamos
Con ese panorama, nosotros acaeceríamos en gramaticas con olor a biblioteca, mientras se torcia el plan del dia.With that outlook, we would occur in grammars that smell of libraries, while the day's plan was coming apart.
vosotrosacaeceríais
Llegado el caso, vosotros acaeceríais en resenas de textos medievales, antes de que cambiara el turno.If it came to that, you all would occur in reviews of medieval texts, before the shift changed.
ellosacaecerían
En un día así, las formas viejas del verbo acaecerían en apuntes de historia de la lengua, despues de otra llamada incomoda.On a day like that, the old forms of the verb would occur in notes on the history of the language, after another awkward call.

Condicional Perfecto

Conditional Perfect

Study tense
PronounFormContext
yohabría acaecido
En otro momento, yo habría acaecido solo como forma rara en libros viejos, con la cabeza en otra parte.At another moment, I would have occurred only as a rare form in old books, with the mind somewhere else.
habrías acaecido
Con un poco más de margen, tú habrías acaecido en ejemplos de gramatica historica, aunque seguia faltando tiempo.With a little more margin, you would have occurred in examples from historical grammar, although time was still running short.
élhabría acaecido
A esas alturas, la forma vieja del verbo habría acaecido en alguna cronica polvorienta, sin hacer mas comentarios.By then, the old form of the verb would have occurred in the odd dusty chronicle, without making any more comments.
nosotroshabríamos acaecido
Con ese giro, nosotros habríamos acaecido mas en manuales que en la calle, con el cuerpo ya cansado.With that turn, we would have occurred more in manuals than in the street, with the body already tired.
vosotroshabríais acaecido
Llegados ahí, vosotros habríais acaecido casi nunca fuera de textos solemnes, aunque el dia venia torcido.At that point, you all would have occurred almost never outside solemn texts, although the day had started badly.
elloshabrían acaecido
En ese punto, las formas viejas del verbo habrían acaecido sobre todo en paginas muy antiguas, mientras el resto seguia dentro.From there, the old forms of the verb would have occurred mostly on very old pages, while the others stayed inside.

Subjuntivo Presente

Present Subjunctive

Study tense
PronounFormContext
yoacaezca
Es mejor que yo acaezca en notas al pie de ediciones criticas, antes de oir el segundo timbre.It is better that I occur in footnotes to critical editions, before the second bell rang.
acaezcas
Hace falta que tú acaezcas en citas de cronistas del siglo de oro, despues de moverlo todo otra vez.It is necessary that you occur in quotations from chroniclers of the golden age, after moving everything around again.
élacaezca
Conviene que la forma vieja del verbo acaezca en comparaciones con verbos ya caidos, sin cambiar de idea a mitad.It is wise that the old form of the verb occur in comparisons with verbs that have already fallen away, without changing course halfway through.
nosotrosacaezcamos
Importa que nosotros acaezcamos en articulos sobre lengua clasica, cuando la luz ya bajaba.It matters that we occur in articles about classical language, as the light was already fading.
vosotrosacaezcáis
Puede ser útil que vosotros acaezcáis en repertorios de formas olvidadas, porque hacia falta resolverlo ya.It may help if you all occur in collections of forgotten forms, because it had to be dealt with at once.
ellosacaezcan
Es posible que las formas viejas del verbo acaezcan en listas de verbos poco vivos, con la ventana todavia abierta.It is possible that the old forms of the verb occur in lists of verbs with little life left, with the window still open.

Subjuntivo Pretérito Perfecto

Present Perfect Subjunctive

Study tense
PronounFormContext
yohaya acaecido
Ojalá yo haya acaecido en comentarios de filologia hispanica, tras una manana bastante larga a tiempo.Hopefully I have occurred in comments on Hispanic philology, after a fairly long morning in time.
hayas acaecido
Puede que tú ya hayas acaecido en ejemplos que nadie usa hablando, aunque seguia el mismo desorden sin contarlo.Maybe you already have occurred in examples that nobody uses in speech, although the same disorder was still there without saying so.
élhaya acaecido
Tal vez la forma vieja del verbo haya acaecido en discusiones sobre arcaismos extremos, mientras alguien pedia otra cosa antes de venir.Perhaps the old form of the verb has occurred in arguments about extreme archaisms, while someone else was asking for something new before coming over.
nosotroshayamos acaecido
Quizá nosotros ya hayamos acaecido en gramaticas con olor a biblioteca, antes de que llegara mas gente por nuestra cuenta.Maybe we already have occurred in grammars that smell of libraries, before more people arrived on our own.
vosotroshayáis acaecido
Es probable que vosotros hayáis acaecido en resenas de textos medievales, con una tension dificil de esconder mejor de lo esperado.It is likely that you all have occurred in reviews of medieval texts, with a tension that was hard to hide better than expected.
elloshayan acaecido
Puede ser que las formas viejas del verbo ya hayan acaecido en apuntes de historia de la lengua, sin volver sobre lo mismo desde temprano.It may be that the old forms of the verb already have occurred in notes on the history of the language, without going back over the same point since early on.

Subjuntivo Pretérito Imperfecto

Imperfect Subjunctive

Study tense
PronounFormContext
yoacaeciera
Si yo acaeciera solo como forma rara en libros viejos, cuando el pasillo seguia lleno, se notaría enseguida.If I occurred only as a rare form in old books, while the hallway was still crowded, it would show right away.
acaecieras
Si tú acaecieras en ejemplos de gramatica historica, aunque nadie lo puso facil, costaría ocultarlo.If you occurred in examples from historical grammar, although nobody made it easy, it would be hard to hide.
élacaeciera
Si la forma vieja del verbo acaeciera en alguna cronica polvorienta, con muy poco hueco para maniobrar, daría mucho que hablar.If the old form of the verb occurred in the odd dusty chronicle, with very little room to manoeuvre, it would give people plenty to talk about.
nosotrosacaeciéramos
Si nosotros acaeciéramos mas en manuales que en la calle, mientras se torcia el plan del dia, todo iría por otro lado.If we occurred more in manuals than in the street, while the day's plan was coming apart, everything would go another way.
vosotrosacaecierais
Si vosotros acaecierais casi nunca fuera de textos solemnes, antes de que cambiara el turno, cambiaría el ambiente.If you all occurred almost never outside solemn texts, before the shift changed, the mood would change.
ellosacaecieran
Si las formas viejas del verbo acaecieran sobre todo en paginas muy antiguas, despues de otra llamada incomoda, la escena sería otra.If the old forms of the verb occurred mostly on very old pages, after another awkward call, the whole scene would be different.

Subjuntivo Pretérito Pluscuamperfecto

Past Perfect Subjunctive

Study tense
PronounFormContext
yohubiera acaecido
Si yo hubiera acaecido en notas al pie de ediciones criticas, con la cabeza en otra parte, aún se recordaría.If I had occurred in footnotes to critical editions, with the mind somewhere else, it would still be remembered.
hubieras acaecido
Si tú hubieras acaecido en citas de cronistas del siglo de oro, aunque seguia faltando tiempo, eso habría dejado marca.If you had occurred in quotations from chroniclers of the golden age, although time was still running short, that would have left a mark.
élhubiera acaecido
Si la forma vieja del verbo hubiera acaecido en comparaciones con verbos ya caidos, sin hacer mas comentarios, todavía se hablaría de eso.If the old form of the verb had occurred in comparisons with verbs that have already fallen away, without making any more comments, people would still be talking about it.
nosotroshubiéramos acaecido
Si nosotros hubiéramos acaecido en articulos sobre lengua clasica, con el cuerpo ya cansado, el día habría seguido otro rumbo.If we had occurred in articles about classical language, with the body already tired, the day would have gone another way.
vosotroshubierais acaecido
Si vosotros hubierais acaecido en repertorios de formas olvidadas, aunque el dia venia torcido, el cambio se habría notado antes.If you all had occurred in collections of forgotten forms, although the day had started badly, the change would have shown earlier.
elloshubieran acaecido
Si las formas viejas del verbo hubieran acaecido en listas de verbos poco vivos, mientras el resto seguia dentro, nada habría quedado igual.If the old forms of the verb had occurred in lists of verbs with little life left, while the others stayed inside, nothing would have stayed the same.

Subjuntivo Futuro

Future Subjunctive

Study tense
PronounFormContext
yoacaeciere
Si yo acaeciere en comentarios de filologia hispanica, antes de oir el segundo timbre, se notará enseguida.If I occur in comments on Hispanic philology, before the second bell rang, it will show right away.
acaecieres
Si tú acaecieres en ejemplos que nadie usa hablando, despues de moverlo todo otra vez, costará ignorarlo.If you occur in examples that nobody uses in speech, after moving everything around again, it will be hard to ignore.
élacaeciere
Si la forma vieja del verbo acaeciere en discusiones sobre arcaismos extremos, sin cambiar de idea a mitad, dará mucho que hablar.If the old form of the verb occurs in arguments about extreme archaisms, without changing course halfway through, it will give people plenty to talk about.
nosotrosacaeciéremos
Si nosotros acaeciéremos en gramaticas con olor a biblioteca, cuando la luz ya bajaba, todo irá por otro camino.If we occur in grammars that smell of libraries, as the light was already fading, everything will go another way.
vosotrosacaeciereis
Si vosotros acaeciereis en resenas de textos medievales, porque hacia falta resolverlo ya, el ambiente cambiará rápido.If you all occur in reviews of medieval texts, because it had to be dealt with at once, the mood will change fast.
ellosacaecieren
Si las formas viejas del verbo acaecieren en apuntes de historia de la lengua, con la ventana todavia abierta, la escena será distinta.If the old forms of the verb occur in notes on the history of the language, with the window still open, the whole scene will be different.

Subjuntivo Futuro Perfecto

Future Perfect Subjunctive

Study tense
PronounFormContext
yohubiere acaecido
Cuando yo hubiere acaecido solo como forma rara en libros viejos, tras una manana bastante larga, ya se notará.When I have occurred only as a rare form in old books, after a fairly long morning, it will already show.
hubieres acaecido
En cuanto tú hubieres acaecido en ejemplos de gramatica historica, aunque seguia el mismo desorden, será difícil no verlo.As soon as you have occurred in examples from historical grammar, although the same disorder was still there, it will be hard not to see.
élhubiere acaecido
Cuando la forma vieja del verbo hubiere acaecido en alguna cronica polvorienta, mientras alguien pedia otra cosa, se verá de inmediato.When the old form of the verb has occurred in the odd dusty chronicle, while someone else was asking for something new, it will show at once.
nosotroshubiéremos acaecido
Si para entonces nosotros hubiéremos acaecido mas en manuales que en la calle, antes de que llegara mas gente, todo irá de otra manera.If by then we have occurred more in manuals than in the street, before more people arrived, everything will move differently.
vosotroshubiereis acaecido
Cuando vosotros hubiereis acaecido casi nunca fuera de textos solemnes, con una tension dificil de esconder, el ambiente sonará distinto.When you all have occurred almost never outside solemn texts, with a tension that was hard to hide, the mood will sound different.
elloshubieren acaecido
En cuanto las formas viejas del verbo hubieren acaecido sobre todo en paginas muy antiguas, sin volver sobre lo mismo, el cambio quedará claro.As soon as the old forms of the verb have occurred mostly on very old pages, without going back over the same point, the change will be clear.

Imperativo Afirmativo

Affirmative Imperative

Study tense
PronounFormContext
yo-
-
acaece
acaece en citas de cronistas del siglo de oro, aunque nadie lo puso facil.Occur in quotations from chroniclers of the golden age, although nobody made it easy.
élacaezca
Que la forma vieja del verbo acaezca en comparaciones con verbos ya caidos, con muy poco hueco para maniobrar.Let the old form of the verb occur in comparisons with verbs that have already fallen away, with very little room to manoeuvre.
nosotrosacaezcamos
acaezcamos en articulos sobre lengua clasica, mientras se torcia el plan del dia.Occur in articles about classical language, while the day's plan was coming apart.
vosotrosacaeced
acaeced en repertorios de formas olvidadas, antes de que cambiara el turno.Occur in collections of forgotten forms, before the shift changed.
ellosacaezcan
Que las formas viejas del verbo acaezcan en listas de verbos poco vivos, despues de otra llamada incomoda.Let the old forms of the verb occur in lists of verbs with little life left, after another awkward call.

Imperativo Negativo

Negative Imperative

Study tense
PronounFormContext
yo-
-
no acaezcas
No no acaezcas en ejemplos que nadie usa hablando, aunque seguia faltando tiempo.Do not occur in examples that nobody uses in speech, although time was still running short.
élno acaezca
Que la forma vieja del verbo no no acaezca en discusiones sobre arcaismos extremos, sin hacer mas comentarios.Let the old form of the verb not occur in arguments about extreme archaisms, without making any more comments.
nosotrosno acaezcamos
No no acaezcamos en gramaticas con olor a biblioteca, con el cuerpo ya cansado.Let us not occur in grammars that smell of libraries, with the body already tired.
vosotrosno acaezcáis
No no acaezcáis en resenas de textos medievales, aunque el dia venia torcido.Do not occur in reviews of medieval texts, although the day had started badly.
ellosno acaezcan
Que las formas viejas del verbo no no acaezcan en apuntes de historia de la lengua, mientras el resto seguia dentro.Let the old forms of the verb not occur in notes on the history of the language, while the others stayed inside.
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Practice acaecer

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Presenteyo

Yo ___ solo como forma rara en libros viejos.

I occur only as a rare form in old books.

Need grammar help?How to form Presente

Use Presente for facts, habits, current states, and regular actions.

Formation

  1. 1Remove the infinitive ending: -ar, -er, or -ir.
  2. 2Add the present endings for the subject.
  3. 3Watch high-frequency irregulars like ser, estar, ir, tener, hacer, and decir.

Pattern

-ar: o, as, a, amos, áis, an-er: o, es, e, emos, éis, en-ir: o, es, e, imos, ís, en

Examples

hablar -> yo hablocomer -> él comevivir -> vosotros vivís

Presente is the base system. Master the endings first, then handle irregular yo forms and stem changes.

Grammar to master with acaecer

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Concepts that come up every time you conjugate acaecer. Each is a short, focused guide.

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What does 'acaecer' mean in English?
In Spanish, 'acaecer' means to occur. It is a irregular -ER verb used across all 18 standard Spanish tenses.
Is acaecer an irregular verb in Spanish?
Yes, acaecer is an irregular Spanish verb. It does not follow the regular -ER ending pattern in every tense — some forms change stem or use unique endings. The complete conjugation table on this page shows every irregular form.
How do you conjugate acaecer in the present tense?
Present tense (Presente) of acaecer: yo acaezco, tú acaeces, él/ella/usted acaece, nosotros acaecemos, vosotros acaecéis, ellos/ellas/ustedes acaecen.
How do you conjugate acaecer in the preterite?
Preterite (Pretérito Indefinido) of acaecer: yo acaecí, tú acaeciste, él/ella/usted acaeció, nosotros acaecimos, vosotros acaecisteis, ellos/ellas/ustedes acaecieron. This tense expresses completed past actions at a defined point in time.
What is the imperfect tense of acaecer?
Imperfect (Pretérito Imperfecto) of acaecer: yo acaecía, tú acaecías, él/ella/usted acaecía, nosotros acaecíamos, vosotros acaecíais, ellos/ellas/ustedes acaecían. The imperfect describes past habits, ongoing actions, and background states.
What is the past participle of acaecer?
The past participle of acaecer is 'acaecido'. It is used to form compound tenses with the auxiliary verb haber — for example, 'he acaecido' (I have occured), 'has acaecido', 'ha acaecido'.
What is the gerundio (present participle) of acaecer?
The gerundio of acaecer is 'acaeciendo'. It pairs with estar to form the present continuous (estoy acaeciendo) and other progressive tenses, indicating an action in progress.