Non-finite forms
Infinitivo and Gerundio
| Form | Spanish | Use |
|---|---|---|
| Infinitivo | atestiguar | Dictionary form and base form for many compound structures. |
| Gerundio | atestiguando | Used with estar for progressive forms, for example estar atestiguando. |
Spanish verb conjugation
Atestiguar conjugation
atestiguar is an irregular Spanish -AR verb meaning attest / witness. In the present tense: yo atestiguo, tú atestiguas, él/ella atestigua, nosotros atestiguamos, vosotros atestiguáis, ellos atestiguan. Full conjugation across 18 tenses below.
Rank #1370-ARIrregular18 tense tables
At a glance
- Infinitive
- atestiguar
- Gerundio
- atestiguando
- Meaning
- attest / witness
- Pattern
- Irregular
- Difficulty
- Level 2
Conjugation tables
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Atestiguar across the MuyVerbs tense system
Study present continuous
Presente
Present
| Pronoun | Form | Context |
|---|---|---|
| yo | atestiguo | Yo atestiguo lo ocurrido con mi firma.I attest what happened with my signature. |
| tú | atestiguas | Normalmente, tú atestiguas la entrega delante de todos.You usually attest the handoff in front of everyone. |
| él | atestigua | Hoy, la vecina del tercero atestigua el choque desde la ventana.Today, the neighbor on the third floor attests the crash from the window. |
| nosotros | atestiguamos | A veces, nosotros atestiguamos el acuerdo ante notario.At times, we attest the agreement before a notary. |
| vosotros | atestiguáis | Ahora, vosotros atestiguáis el estado del local en fotos.Right now, you all attest the condition of the place in photos. |
| ellos | atestiguan | Casi siempre, los papeles del juzgado atestiguan cada cambio con sellos oficiales.Most of the time, the court papers attest each change with official stamps. |
Pretérito Perfecto
Present Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | he atestiguado | Este año, yo he atestiguado lo ocurrido con mi firma.This year, I have attested what happened with my signature. |
| tú | has atestiguado | Últimamente, tú has atestiguado la entrega delante de todos.Lately, you have attested the handoff in front of everyone. |
| él | ha atestiguado | En estos meses, la vecina del tercero ha atestiguado el choque desde la ventana.In these months, the neighbor on the third floor has attested the crash from the window. |
| nosotros | hemos atestiguado | Hasta ahora, nosotros hemos atestiguado el acuerdo ante notario.So far, we have attested the agreement before a notary. |
| vosotros | habéis atestiguado | En lo que va de curso, vosotros habéis atestiguado el estado del local en fotos.This term, you all have attested the condition of the place in photos. |
| ellos | han atestiguado | En este tiempo, los papeles del juzgado han atestiguado cada cambio con sellos oficiales.During this time, the court papers have attested each change with official stamps. |
Pretérito Indefinido
Preterite
| Pronoun | Form | Context |
|---|---|---|
| yo | atestigüé | Ayer, yo atestigüé lo ocurrido con mi firma.Yesterday, I attested what happened with my signature. |
| tú | atestiguaste | Hace un rato, tú atestiguaste la entrega delante de todos.A little while ago, you attested the handoff in front of everyone. |
| él | atestiguó | Esta mañana, la vecina del tercero atestiguó el choque desde la ventana.This morning, the neighbor on the third floor attested the crash from the window. |
| nosotros | atestiguamos | Anoche, nosotros atestiguamos el acuerdo ante notario.Last night, we attested the agreement before a notary. |
| vosotros | atestiguasteis | El sábado, vosotros atestiguasteis el estado del local en fotos.On Saturday, you all attested the condition of the place in photos. |
| ellos | atestiguaron | Hace poco, los papeles del juzgado atestiguaron cada cambio con sellos oficiales.Not long ago, the court papers attested each change with official stamps. |
Pretérito Imperfecto
Imperfect
| Pronoun | Form | Context |
|---|---|---|
| yo | atestiguaba | Antes, yo atestiguaba lo ocurrido con mi firma.Before, I used to attest what happened with my signature. |
| tú | atestiguabas | Por entonces, tú atestiguabas la entrega delante de todos.Back then, you used to attest the handoff in front of everyone. |
| él | atestiguaba | En esa época, la vecina del tercero atestiguaba el choque desde la ventana.At that time, the neighbor on the third floor used to attest the crash from the window. |
| nosotros | atestiguábamos | Cuando eso era normal, nosotros atestiguábamos el acuerdo ante notario.When that was normal, we used to attest the agreement before a notary. |
| vosotros | atestiguabais | Hace años, vosotros atestiguabais el estado del local en fotos.Years ago, you all used to attest the condition of the place in photos. |
| ellos | atestiguaban | En aquellos días, los papeles del juzgado atestiguaban cada cambio con sellos oficiales.In those days, the court papers used to attest each change with official stamps. |
Pretérito Pluscuamperfecto
Past Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | había atestiguado | Cuando llegaste, yo ya había atestiguado lo ocurrido con mi firma.When you arrived, I had already attested what happened with my signature. |
| tú | habías atestiguado | Para entonces, tú ya habías atestiguado la entrega delante de todos.By then, you had already attested the handoff in front of everyone. |
| él | había atestiguado | Al volver, la vecina del tercero ya había atestiguado el choque desde la ventana.When we came back, the neighbor on the third floor had already attested the crash from the window. |
| nosotros | habíamos atestiguado | Antes de hablarlo, nosotros ya habíamos atestiguado el acuerdo ante notario.Before talking it through, we had already attested the agreement before a notary. |
| vosotros | habíais atestiguado | Cuando mirasteis otra vez, vosotros ya habíais atestiguado el estado del local en fotos.When you looked again, you all had already attested the condition of the place in photos. |
| ellos | habían atestiguado | Para ese momento, los papeles del juzgado ya habían atestiguado cada cambio con sellos oficiales.By that moment, the court papers had already attested each change with official stamps. |
Pretérito Anterior
Preterite Anterior
| Pronoun | Form | Context |
|---|---|---|
| yo | hube atestiguado | Apenas yo hube atestiguado lo ocurrido con mi firma, todo cambió.As soon as I had attested what happened with my signature, everything changed. |
| tú | hubiste atestiguado | En cuanto tú hubiste atestiguado la entrega delante de todos, se notó.The moment you had attested the handoff in front of everyone, it showed. |
| él | hubo atestiguado | No bien la vecina del tercero hubo atestiguado el choque desde la ventana, hubo ruido.As soon as the neighbor on the third floor had attested the crash from the window, there was trouble. |
| nosotros | hubimos atestiguado | Tan pronto como nosotros hubimos atestiguado el acuerdo ante notario, seguimos adelante.Once we had attested the agreement before a notary, we moved on. |
| vosotros | hubisteis atestiguado | Apenas vosotros hubisteis atestiguado el estado del local en fotos, mirasteis el resultado.As soon as you all had attested the condition of the place in photos, you checked the result. |
| ellos | hubieron atestiguado | En cuanto los papeles del juzgado hubieron atestiguado cada cambio con sellos oficiales, el ambiente cambió.The moment the court papers had attested each change with official stamps, the mood changed. |
Futuro
Future
| Pronoun | Form | Context |
|---|---|---|
| yo | atestiguaré | Mañana, yo atestiguaré lo ocurrido con mi firma.Tomorrow, I will attest what happened with my signature. |
| tú | atestiguarás | Dentro de poco, tú atestiguarás la entrega delante de todos.Soon, you will attest the handoff in front of everyone. |
| él | atestiguará | Esta tarde, la vecina del tercero atestiguará el choque desde la ventana.This afternoon, the neighbor on the third floor will attest the crash from the window. |
| nosotros | atestiguaremos | La semana que viene, nosotros atestiguaremos el acuerdo ante notario.Next week, we will attest the agreement before a notary. |
| vosotros | atestiguaréis | Pronto, vosotros atestiguaréis el estado del local en fotos.Before long, you all will attest the condition of the place in photos. |
| ellos | atestiguarán | Más adelante, los papeles del juzgado atestiguarán cada cambio con sellos oficiales.Later on, the court papers will attest each change with official stamps. |
Futuro Perfecto
Future Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | habré atestiguado | Para entonces, yo ya habré atestiguado lo ocurrido con mi firma.By then, I will already have attested what happened with my signature. |
| tú | habrás atestiguado | Antes del cierre, tú ya habrás atestiguado la entrega delante de todos.Before closing time, you will already have attested the handoff in front of everyone. |
| él | habrá atestiguado | Al final del día, la vecina del tercero ya habrá atestiguado el choque desde la ventana.By the end of the day, the neighbor on the third floor will already have attested the crash from the window. |
| nosotros | habremos atestiguado | Para mañana, nosotros ya habremos atestiguado el acuerdo ante notario.By tomorrow, we will already have attested the agreement before a notary. |
| vosotros | habréis atestiguado | Antes de iros, vosotros ya habréis atestiguado el estado del local en fotos.Before leaving, you all will already have attested the condition of the place in photos. |
| ellos | habrán atestiguado | Para esa hora, los papeles del juzgado ya habrán atestiguado cada cambio con sellos oficiales.By that hour, the court papers will already have attested each change with official stamps. |
Condicional
Conditional
| Pronoun | Form | Context |
|---|---|---|
| yo | atestiguaría | En un caso así, yo atestiguaría lo ocurrido con mi firma.In a case like that, I would attest what happened with my signature. |
| tú | atestiguarías | Con un poco más de tiempo, tú atestiguarías la entrega delante de todos.With a little more time, you would attest the handoff in front of everyone. |
| él | atestiguaría | En esa situación, la vecina del tercero atestiguaría el choque desde la ventana.In that situation, the neighbor on the third floor would attest the crash from the window. |
| nosotros | atestiguaríamos | Con ese panorama, nosotros atestiguaríamos el acuerdo ante notario.With that outlook, we would attest the agreement before a notary. |
| vosotros | atestiguaríais | Llegado el caso, vosotros atestiguaríais el estado del local en fotos.If it came to that, you all would attest the condition of the place in photos. |
| ellos | atestiguarían | En un día así, los papeles del juzgado atestiguarían cada cambio con sellos oficiales.On a day like that, the court papers would attest each change with official stamps. |
Condicional Perfecto
Conditional Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | habría atestiguado | En otro momento, yo habría atestiguado lo ocurrido con mi firma.At another moment, I would have attested what happened with my signature. |
| tú | habrías atestiguado | Con un poco más de margen, tú habrías atestiguado la entrega delante de todos.With a little more margin, you would have attested the handoff in front of everyone. |
| él | habría atestiguado | A esas alturas, la vecina del tercero habría atestiguado el choque desde la ventana.By then, the neighbor on the third floor would have attested the crash from the window. |
| nosotros | habríamos atestiguado | Con ese giro, nosotros habríamos atestiguado el acuerdo ante notario.With that turn, we would have attested the agreement before a notary. |
| vosotros | habríais atestiguado | Llegados ahí, vosotros habríais atestiguado el estado del local en fotos.At that point, you all would have attested the condition of the place in photos. |
| ellos | habrían atestiguado | En ese punto, los papeles del juzgado habrían atestiguado cada cambio con sellos oficiales.From there, the court papers would have attested each change with official stamps. |
Subjuntivo Presente
Present Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | atestigüe | Es mejor que yo atestigüe lo ocurrido con mi firma.It is better that I attest what happened with my signature. |
| tú | atestigües | Hace falta que tú atestigües la entrega delante de todos.It is necessary that you attest the handoff in front of everyone. |
| él | atestigüe | Conviene que la vecina del tercero atestigüe el choque desde la ventana.It is wise that the neighbor on the third floor attest the crash from the window. |
| nosotros | atestigüemos | Importa que nosotros atestigüemos el acuerdo ante notario.It matters that we attest the agreement before a notary. |
| vosotros | atestigüéis | Puede ser útil que vosotros atestigüéis el estado del local en fotos.It may help if you all attest the condition of the place in photos. |
| ellos | atestigüen | Es posible que los papeles del juzgado atestigüen cada cambio con sellos oficiales.It is possible that the court papers attest each change with official stamps. |
Subjuntivo Pretérito Perfecto
Present Perfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | haya atestiguado | Ojalá yo haya atestiguado lo ocurrido con mi firma.Hopefully I have attested what happened with my signature. |
| tú | hayas atestiguado | Puede que tú ya hayas atestiguado la entrega delante de todos.Maybe you already have attested the handoff in front of everyone. |
| él | haya atestiguado | Tal vez la vecina del tercero haya atestiguado el choque desde la ventana.Perhaps the neighbor on the third floor has attested the crash from the window. |
| nosotros | hayamos atestiguado | Quizá nosotros ya hayamos atestiguado el acuerdo ante notario.Maybe we already have attested the agreement before a notary. |
| vosotros | hayáis atestiguado | Es probable que vosotros hayáis atestiguado el estado del local en fotos.It is likely that you all have attested the condition of the place in photos. |
| ellos | hayan atestiguado | Puede ser que los papeles del juzgado ya hayan atestiguado cada cambio con sellos oficiales.It may be that the court papers already have attested each change with official stamps. |
Subjuntivo Pretérito Imperfecto
Imperfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | atestiguara | Si yo atestiguara lo ocurrido con mi firma, se notaría enseguida.If I attested what happened with my signature, it would show right away. |
| tú | atestiguaras | Si tú atestiguaras la entrega delante de todos, costaría ocultarlo.If you attested the handoff in front of everyone, it would be hard to hide. |
| él | atestiguara | Si la vecina del tercero atestiguara el choque desde la ventana, daría mucho que hablar.If the neighbor on the third floor attested the crash from the window, it would give people plenty to talk about. |
| nosotros | atestiguáramos | Si nosotros atestiguáramos el acuerdo ante notario, todo iría por otro lado.If we attested the agreement before a notary, everything would go another way. |
| vosotros | atestiguarais | Si vosotros atestiguarais el estado del local en fotos, cambiaría el ambiente.If you all attested the condition of the place in photos, the mood would change. |
| ellos | atestiguaran | Si los papeles del juzgado atestiguaran cada cambio con sellos oficiales, la escena sería otra.If the court papers attested each change with official stamps, the whole scene would be different. |
Subjuntivo Pretérito Pluscuamperfecto
Past Perfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | hubiera atestiguado | Si yo hubiera atestiguado lo ocurrido con mi firma, aún se recordaría.If I had attested what happened with my signature, it would still be remembered. |
| tú | hubieras atestiguado | Si tú hubieras atestiguado la entrega delante de todos, eso habría dejado marca.If you had attested the handoff in front of everyone, that would have left a mark. |
| él | hubiera atestiguado | Si la vecina del tercero hubiera atestiguado el choque desde la ventana, todavía se hablaría de eso.If the neighbor on the third floor had attested the crash from the window, people would still be talking about it. |
| nosotros | hubiéramos atestiguado | Si nosotros hubiéramos atestiguado el acuerdo ante notario, el día habría seguido otro rumbo.If we had attested the agreement before a notary, the day would have gone another way. |
| vosotros | hubierais atestiguado | Si vosotros hubierais atestiguado el estado del local en fotos, el cambio se habría notado antes.If you all had attested the condition of the place in photos, the change would have shown earlier. |
| ellos | hubieran atestiguado | Si los papeles del juzgado hubieran atestiguado cada cambio con sellos oficiales, nada habría quedado igual.If the court papers had attested each change with official stamps, nothing would have stayed the same. |
Subjuntivo Futuro
Future Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | atestiguare | Si yo atestiguare lo ocurrido con mi firma, se notará enseguida.If I attest what happened with my signature, it will show right away. |
| tú | atestiguares | Si tú atestiguares la entrega delante de todos, costará ignorarlo.If you attest the handoff in front of everyone, it will be hard to ignore. |
| él | atestiguare | Si la vecina del tercero atestiguare el choque desde la ventana, dará mucho que hablar.If the neighbor on the third floor attests the crash from the window, it will give people plenty to talk about. |
| nosotros | atestiguáremos | Si nosotros atestiguáremos el acuerdo ante notario, todo irá por otro camino.If we attest the agreement before a notary, everything will go another way. |
| vosotros | atestiguareis | Si vosotros atestiguareis el estado del local en fotos, el ambiente cambiará rápido.If you all attest the condition of the place in photos, the mood will change fast. |
| ellos | atestiguaren | Si los papeles del juzgado atestiguaren cada cambio con sellos oficiales, la escena será distinta.If the court papers attest each change with official stamps, the whole scene will be different. |
Subjuntivo Futuro Perfecto
Future Perfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | hubiere atestiguado | Cuando yo hubiere atestiguado lo ocurrido con mi firma, ya se notará.When I have attested what happened with my signature, it will already show. |
| tú | hubieres atestiguado | En cuanto tú hubieres atestiguado la entrega delante de todos, será difícil no verlo.As soon as you have attested the handoff in front of everyone, it will be hard not to see. |
| él | hubiere atestiguado | Cuando la vecina del tercero hubiere atestiguado el choque desde la ventana, se verá de inmediato.When the neighbor on the third floor has attested the crash from the window, it will show at once. |
| nosotros | hubiéremos atestiguado | Si para entonces nosotros hubiéremos atestiguado el acuerdo ante notario, todo irá de otra manera.If by then we have attested the agreement before a notary, everything will move differently. |
| vosotros | hubiereis atestiguado | Cuando vosotros hubiereis atestiguado el estado del local en fotos, el ambiente sonará distinto.When you all have attested the condition of the place in photos, the mood will sound different. |
| ellos | hubieren atestiguado | En cuanto los papeles del juzgado hubieren atestiguado cada cambio con sellos oficiales, el cambio quedará claro.As soon as the court papers have attested each change with official stamps, the change will be clear. |
Imperativo Afirmativo
Affirmative Imperative
| Pronoun | Form | Context |
|---|---|---|
| yo | - | - |
| tú | atestigua | atestigua la entrega delante de todos.Attest the handoff in front of everyone. |
| él | atestigüe | Que la vecina del tercero atestigüe el choque desde la ventana.Let the neighbor on the third floor Attest the crash from the window. |
| nosotros | atestigüemos | atestigüemos el acuerdo ante notario.Attest the agreement before a notary. |
| vosotros | atestiguad | atestiguad el estado del local en fotos.Attest the condition of the place in photos. |
| ellos | atestigüen | Que los papeles del juzgado atestigüen cada cambio con sellos oficiales.Let the court papers Attest each change with official stamps. |
Imperativo Negativo
Negative Imperative
| Pronoun | Form | Context |
|---|---|---|
| yo | - | - |
| tú | no atestigües | No no atestigües la entrega delante de todos.Do not attest the handoff in front of everyone. |
| él | no atestigüe | Que la vecina del tercero no no atestigüe el choque desde la ventana.Let the neighbor on the third floor not attest the crash from the window. |
| nosotros | no atestigüemos | No no atestigüemos el acuerdo ante notario.Let us not attest the agreement before a notary. |
| vosotros | no atestigüéis | No no atestigüéis el estado del local en fotos.Do not attest the condition of the place in photos. |
| ellos | no atestigüen | Que los papeles del juzgado no no atestigüen cada cambio con sellos oficiales.Let the court papers not attest each change with official stamps. |
Free web drill
Practice atestiguar
1 / 1
Presente•yo
Yo ___ lo ocurrido con mi firma.
I attest what happened with my signature.
Need grammar help?How to form Presente
Use Presente for facts, habits, current states, and regular actions.
Formation
- 1Remove the infinitive ending: -ar, -er, or -ir.
- 2Add the present endings for the subject.
- 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 atestiguar
Related Spanish grammar topics
Concepts that come up every time you conjugate atestiguar. Each is a short, focused guide.
Common questions
Atestiguar conjugation — frequently asked
Short, direct answers to what learners search most about atestiguar.
- What does 'atestiguar' mean in English?
- In Spanish, 'atestiguar' means to attest / witness. It is a irregular -AR verb used across all 18 standard Spanish tenses.
- Is atestiguar an irregular verb in Spanish?
- Yes, atestiguar is an irregular Spanish verb. It does not follow the regular -AR 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 atestiguar in the present tense?
- Present tense (Presente) of atestiguar: yo atestiguo, tú atestiguas, él/ella/usted atestigua, nosotros atestiguamos, vosotros atestiguáis, ellos/ellas/ustedes atestiguan.
- How do you conjugate atestiguar in the preterite?
- Preterite (Pretérito Indefinido) of atestiguar: yo atestigüé, tú atestiguaste, él/ella/usted atestiguó, nosotros atestiguamos, vosotros atestiguasteis, ellos/ellas/ustedes atestiguaron. This tense expresses completed past actions at a defined point in time.
- What is the imperfect tense of atestiguar?
- Imperfect (Pretérito Imperfecto) of atestiguar: yo atestiguaba, tú atestiguabas, él/ella/usted atestiguaba, nosotros atestiguábamos, vosotros atestiguabais, ellos/ellas/ustedes atestiguaban. The imperfect describes past habits, ongoing actions, and background states.
- What is the past participle of atestiguar?
- The past participle of atestiguar is 'atestiguado'. It is used to form compound tenses with the auxiliary verb haber — for example, 'he atestiguado' (I have attest / witnessed), 'has atestiguado', 'ha atestiguado'.
- What is the gerundio (present participle) of atestiguar?
- The gerundio of atestiguar is 'atestiguando'. It pairs with estar to form the present continuous (estoy atestiguando) and other progressive tenses, indicating an action in progress.
Related verbs
Continue with verbs that share the same ending and difficulty band.