Non-finite forms
Infinitivo and Gerundio
| Form | Spanish | Use |
|---|---|---|
| Infinitivo | castrar | Dictionary form and base form for many compound structures. |
| Gerundio | castrando | Used with estar for progressive forms, for example estar castrando. |
Spanish verb conjugation
Castrar conjugation
castrar is a regular Spanish -AR verb meaning castrate. In the present tense: yo castro, tú castras, él/ella castra, nosotros castramos, vosotros castráis, ellos castran. Full conjugation across 18 tenses below.
Rank #2348-ARRegular18 tense tables
At a glance
- Infinitive
- castrar
- Gerundio
- castrando
- Meaning
- castrate
- Pattern
- Regular
- Difficulty
- Level 2
Conjugation tables
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Castrar across the MuyVerbs tense system
Study present continuous
Presente
Present
| Pronoun | Form | Context |
|---|---|---|
| yo | castro | Yo castro al gato callejero este viernes.I castrate the stray tomcat this Friday. |
| tú | castras | Normalmente, tú castras al cachorro antes del verano.You usually castrate the puppy before summer. |
| él | castra | Hoy, la veterinaria del barrio castra al cerdo más joven del corral.Today, the neighborhood vet castrates the youngest pig in the pen. |
| nosotros | castramos | A veces, nosotros castramos a los machos del establo.At times, we castrate the males in the stable. |
| vosotros | castráis | Ahora, vosotros castráis al potro con ayuda del veterinario.Right now, you all castrate the colt with the vet's help. |
| ellos | castran | Casi siempre, los granjeros del valle castran a los animales enfermos a tiempo.Most of the time, the farmers in the valley castrate the sick animals in time. |
Pretérito Perfecto
Present Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | he castrado | Este año, yo he castrado al gato callejero este viernes.This year, I have castrated the stray tomcat this Friday. |
| tú | has castrado | Últimamente, tú has castrado al cachorro antes del verano.Lately, you have castrated the puppy before summer. |
| él | ha castrado | En estos meses, la veterinaria del barrio ha castrado al cerdo más joven del corral.In these months, the neighborhood vet has castrated the youngest pig in the pen. |
| nosotros | hemos castrado | Hasta ahora, nosotros hemos castrado a los machos del establo.So far, we have castrated the males in the stable. |
| vosotros | habéis castrado | En lo que va de curso, vosotros habéis castrado al potro con ayuda del veterinario.This term, you all have castrated the colt with the vet's help. |
| ellos | han castrado | En este tiempo, los granjeros del valle han castrado a los animales enfermos a tiempo.During this time, the farmers in the valley have castrated the sick animals in time. |
Pretérito Indefinido
Preterite
| Pronoun | Form | Context |
|---|---|---|
| yo | castré | Ayer, yo castré al gato callejero este viernes.Yesterday, I castrated the stray tomcat this Friday. |
| tú | castraste | Hace un rato, tú castraste al cachorro antes del verano.A little while ago, you castrated the puppy before summer. |
| él | castró | Esta mañana, la veterinaria del barrio castró al cerdo más joven del corral.This morning, the neighborhood vet castrated the youngest pig in the pen. |
| nosotros | castramos | Anoche, nosotros castramos a los machos del establo.Last night, we castrated the males in the stable. |
| vosotros | castrasteis | El sábado, vosotros castrasteis al potro con ayuda del veterinario.On Saturday, you all castrated the colt with the vet's help. |
| ellos | castraron | Hace poco, los granjeros del valle castraron a los animales enfermos a tiempo.Not long ago, the farmers in the valley castrated the sick animals in time. |
Pretérito Imperfecto
Imperfect
| Pronoun | Form | Context |
|---|---|---|
| yo | castraba | Antes, yo castraba al gato callejero este viernes.Before, I used to castrate the stray tomcat this Friday. |
| tú | castrabas | Por entonces, tú castrabas al cachorro antes del verano.Back then, you used to castrate the puppy before summer. |
| él | castraba | En esa época, la veterinaria del barrio castraba al cerdo más joven del corral.At that time, the neighborhood vet used to castrate the youngest pig in the pen. |
| nosotros | castrábamos | Cuando eso era normal, nosotros castrábamos a los machos del establo.When that was normal, we used to castrate the males in the stable. |
| vosotros | castrabais | Hace años, vosotros castrabais al potro con ayuda del veterinario.Years ago, you all used to castrate the colt with the vet's help. |
| ellos | castraban | En aquellos días, los granjeros del valle castraban a los animales enfermos a tiempo.In those days, the farmers in the valley used to castrate the sick animals in time. |
Pretérito Pluscuamperfecto
Past Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | había castrado | Cuando llegaste, yo ya había castrado al gato callejero este viernes.When you arrived, I had already castrated the stray tomcat this Friday. |
| tú | habías castrado | Para entonces, tú ya habías castrado al cachorro antes del verano.By then, you had already castrated the puppy before summer. |
| él | había castrado | Al volver, la veterinaria del barrio ya había castrado al cerdo más joven del corral.When we came back, the neighborhood vet had already castrated the youngest pig in the pen. |
| nosotros | habíamos castrado | Antes de hablarlo, nosotros ya habíamos castrado a los machos del establo.Before talking it through, we had already castrated the males in the stable. |
| vosotros | habíais castrado | Cuando mirasteis otra vez, vosotros ya habíais castrado al potro con ayuda del veterinario.When you looked again, you all had already castrated the colt with the vet's help. |
| ellos | habían castrado | Para ese momento, los granjeros del valle ya habían castrado a los animales enfermos a tiempo.By that moment, the farmers in the valley had already castrated the sick animals in time. |
Pretérito Anterior
Preterite Anterior
| Pronoun | Form | Context |
|---|---|---|
| yo | hube castrado | Apenas yo hube castrado al gato callejero este viernes, todo cambió.As soon as I had castrated the stray tomcat this Friday, everything changed. |
| tú | hubiste castrado | En cuanto tú hubiste castrado al cachorro antes del verano, se notó.The moment you had castrated the puppy before summer, it showed. |
| él | hubo castrado | No bien la veterinaria del barrio hubo castrado al cerdo más joven del corral, hubo ruido.As soon as the neighborhood vet had castrated the youngest pig in the pen, there was trouble. |
| nosotros | hubimos castrado | Tan pronto como nosotros hubimos castrado a los machos del establo, seguimos adelante.Once we had castrated the males in the stable, we moved on. |
| vosotros | hubisteis castrado | Apenas vosotros hubisteis castrado al potro con ayuda del veterinario, mirasteis el resultado.As soon as you all had castrated the colt with the vet's help, you checked the result. |
| ellos | hubieron castrado | En cuanto los granjeros del valle hubieron castrado a los animales enfermos a tiempo, el ambiente cambió.The moment the farmers in the valley had castrated the sick animals in time, the mood changed. |
Futuro
Future
| Pronoun | Form | Context |
|---|---|---|
| yo | castraré | Mañana, yo castraré al gato callejero este viernes.Tomorrow, I will castrate the stray tomcat this Friday. |
| tú | castrarás | Dentro de poco, tú castrarás al cachorro antes del verano.Soon, you will castrate the puppy before summer. |
| él | castrará | Esta tarde, la veterinaria del barrio castrará al cerdo más joven del corral.This afternoon, the neighborhood vet will castrate the youngest pig in the pen. |
| nosotros | castraremos | La semana que viene, nosotros castraremos a los machos del establo.Next week, we will castrate the males in the stable. |
| vosotros | castraréis | Pronto, vosotros castraréis al potro con ayuda del veterinario.Before long, you all will castrate the colt with the vet's help. |
| ellos | castrarán | Más adelante, los granjeros del valle castrarán a los animales enfermos a tiempo.Later on, the farmers in the valley will castrate the sick animals in time. |
Futuro Perfecto
Future Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | habré castrado | Para entonces, yo ya habré castrado al gato callejero este viernes.By then, I will already have castrated the stray tomcat this Friday. |
| tú | habrás castrado | Antes del cierre, tú ya habrás castrado al cachorro antes del verano.Before closing time, you will already have castrated the puppy before summer. |
| él | habrá castrado | Al final del día, la veterinaria del barrio ya habrá castrado al cerdo más joven del corral.By the end of the day, the neighborhood vet will already have castrated the youngest pig in the pen. |
| nosotros | habremos castrado | Para mañana, nosotros ya habremos castrado a los machos del establo.By tomorrow, we will already have castrated the males in the stable. |
| vosotros | habréis castrado | Antes de iros, vosotros ya habréis castrado al potro con ayuda del veterinario.Before leaving, you all will already have castrated the colt with the vet's help. |
| ellos | habrán castrado | Para esa hora, los granjeros del valle ya habrán castrado a los animales enfermos a tiempo.By that hour, the farmers in the valley will already have castrated the sick animals in time. |
Condicional
Conditional
| Pronoun | Form | Context |
|---|---|---|
| yo | castraría | En un caso así, yo castraría al gato callejero este viernes.In a case like that, I would castrate the stray tomcat this Friday. |
| tú | castrarías | Con un poco más de tiempo, tú castrarías al cachorro antes del verano.With a little more time, you would castrate the puppy before summer. |
| él | castraría | En esa situación, la veterinaria del barrio castraría al cerdo más joven del corral.In that situation, the neighborhood vet would castrate the youngest pig in the pen. |
| nosotros | castraríamos | Con ese panorama, nosotros castraríamos a los machos del establo.With that outlook, we would castrate the males in the stable. |
| vosotros | castraríais | Llegado el caso, vosotros castraríais al potro con ayuda del veterinario.If it came to that, you all would castrate the colt with the vet's help. |
| ellos | castrarían | En un día así, los granjeros del valle castrarían a los animales enfermos a tiempo.On a day like that, the farmers in the valley would castrate the sick animals in time. |
Condicional Perfecto
Conditional Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | habría castrado | En otro momento, yo habría castrado al gato callejero este viernes.At another moment, I would have castrated the stray tomcat this Friday. |
| tú | habrías castrado | Con un poco más de margen, tú habrías castrado al cachorro antes del verano.With a little more margin, you would have castrated the puppy before summer. |
| él | habría castrado | A esas alturas, la veterinaria del barrio habría castrado al cerdo más joven del corral.By then, the neighborhood vet would have castrated the youngest pig in the pen. |
| nosotros | habríamos castrado | Con ese giro, nosotros habríamos castrado a los machos del establo.With that turn, we would have castrated the males in the stable. |
| vosotros | habríais castrado | Llegados ahí, vosotros habríais castrado al potro con ayuda del veterinario.At that point, you all would have castrated the colt with the vet's help. |
| ellos | habrían castrado | En ese punto, los granjeros del valle habrían castrado a los animales enfermos a tiempo.From there, the farmers in the valley would have castrated the sick animals in time. |
Subjuntivo Presente
Present Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | castre | Es mejor que yo castre al gato callejero este viernes.It is better that I castrate the stray tomcat this Friday. |
| tú | castres | Hace falta que tú castres al cachorro antes del verano.It is necessary that you castrate the puppy before summer. |
| él | castre | Conviene que la veterinaria del barrio castre al cerdo más joven del corral.It is wise that the neighborhood vet castrate the youngest pig in the pen. |
| nosotros | castremos | Importa que nosotros castremos a los machos del establo.It matters that we castrate the males in the stable. |
| vosotros | castréis | Puede ser útil que vosotros castréis al potro con ayuda del veterinario.It may help if you all castrate the colt with the vet's help. |
| ellos | castren | Es posible que los granjeros del valle castren a los animales enfermos a tiempo.It is possible that the farmers in the valley castrate the sick animals in time. |
Subjuntivo Pretérito Perfecto
Present Perfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | haya castrado | Ojalá yo haya castrado al gato callejero este viernes.Hopefully I have castrated the stray tomcat this Friday. |
| tú | hayas castrado | Puede que tú ya hayas castrado al cachorro antes del verano.Maybe you already have castrated the puppy before summer. |
| él | haya castrado | Tal vez la veterinaria del barrio haya castrado al cerdo más joven del corral.Perhaps the neighborhood vet has castrated the youngest pig in the pen. |
| nosotros | hayamos castrado | Quizá nosotros ya hayamos castrado a los machos del establo.Maybe we already have castrated the males in the stable. |
| vosotros | hayáis castrado | Es probable que vosotros hayáis castrado al potro con ayuda del veterinario.It is likely that you all have castrated the colt with the vet's help. |
| ellos | hayan castrado | Puede ser que los granjeros del valle ya hayan castrado a los animales enfermos a tiempo.It may be that the farmers in the valley already have castrated the sick animals in time. |
Subjuntivo Pretérito Imperfecto
Imperfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | castrara | Si yo castrara al gato callejero este viernes, se notaría enseguida.If I castrated the stray tomcat this Friday, it would show right away. |
| tú | castraras | Si tú castraras al cachorro antes del verano, costaría ocultarlo.If you castrated the puppy before summer, it would be hard to hide. |
| él | castrara | Si la veterinaria del barrio castrara al cerdo más joven del corral, daría mucho que hablar.If the neighborhood vet castrated the youngest pig in the pen, it would give people plenty to talk about. |
| nosotros | castráramos | Si nosotros castráramos a los machos del establo, todo iría por otro lado.If we castrated the males in the stable, everything would go another way. |
| vosotros | castrarais | Si vosotros castrarais al potro con ayuda del veterinario, cambiaría el ambiente.If you all castrated the colt with the vet's help, the mood would change. |
| ellos | castraran | Si los granjeros del valle castraran a los animales enfermos a tiempo, la escena sería otra.If the farmers in the valley castrated the sick animals in time, the whole scene would be different. |
Subjuntivo Pretérito Pluscuamperfecto
Past Perfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | hubiera castrado | Si yo hubiera castrado al gato callejero este viernes, aún se recordaría.If I had castrated the stray tomcat this Friday, it would still be remembered. |
| tú | hubieras castrado | Si tú hubieras castrado al cachorro antes del verano, eso habría dejado marca.If you had castrated the puppy before summer, that would have left a mark. |
| él | hubiera castrado | Si la veterinaria del barrio hubiera castrado al cerdo más joven del corral, todavía se hablaría de eso.If the neighborhood vet had castrated the youngest pig in the pen, people would still be talking about it. |
| nosotros | hubiéramos castrado | Si nosotros hubiéramos castrado a los machos del establo, el día habría seguido otro rumbo.If we had castrated the males in the stable, the day would have gone another way. |
| vosotros | hubierais castrado | Si vosotros hubierais castrado al potro con ayuda del veterinario, el cambio se habría notado antes.If you all had castrated the colt with the vet's help, the change would have shown earlier. |
| ellos | hubieran castrado | Si los granjeros del valle hubieran castrado a los animales enfermos a tiempo, nada habría quedado igual.If the farmers in the valley had castrated the sick animals in time, nothing would have stayed the same. |
Subjuntivo Futuro
Future Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | castrare | Si yo castrare al gato callejero este viernes, se notará enseguida.If I castrate the stray tomcat this Friday, it will show right away. |
| tú | castrares | Si tú castrares al cachorro antes del verano, costará ignorarlo.If you castrate the puppy before summer, it will be hard to ignore. |
| él | castrare | Si la veterinaria del barrio castrare al cerdo más joven del corral, dará mucho que hablar.If the neighborhood vet castrates the youngest pig in the pen, it will give people plenty to talk about. |
| nosotros | castráremos | Si nosotros castráremos a los machos del establo, todo irá por otro camino.If we castrate the males in the stable, everything will go another way. |
| vosotros | castrareis | Si vosotros castrareis al potro con ayuda del veterinario, el ambiente cambiará rápido.If you all castrate the colt with the vet's help, the mood will change fast. |
| ellos | castraren | Si los granjeros del valle castraren a los animales enfermos a tiempo, la escena será distinta.If the farmers in the valley castrate the sick animals in time, the whole scene will be different. |
Subjuntivo Futuro Perfecto
Future Perfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | hubiere castrado | Cuando yo hubiere castrado al gato callejero este viernes, ya se notará.When I have castrated the stray tomcat this Friday, it will already show. |
| tú | hubieres castrado | En cuanto tú hubieres castrado al cachorro antes del verano, será difícil no verlo.As soon as you have castrated the puppy before summer, it will be hard not to see. |
| él | hubiere castrado | Cuando la veterinaria del barrio hubiere castrado al cerdo más joven del corral, se verá de inmediato.When the neighborhood vet has castrated the youngest pig in the pen, it will show at once. |
| nosotros | hubiéremos castrado | Si para entonces nosotros hubiéremos castrado a los machos del establo, todo irá de otra manera.If by then we have castrated the males in the stable, everything will move differently. |
| vosotros | hubiereis castrado | Cuando vosotros hubiereis castrado al potro con ayuda del veterinario, el ambiente sonará distinto.When you all have castrated the colt with the vet's help, the mood will sound different. |
| ellos | hubieren castrado | En cuanto los granjeros del valle hubieren castrado a los animales enfermos a tiempo, el cambio quedará claro.As soon as the farmers in the valley have castrated the sick animals in time, the change will be clear. |
Imperativo Afirmativo
Affirmative Imperative
| Pronoun | Form | Context |
|---|---|---|
| yo | - | - |
| tú | castra | castra al cachorro antes del verano.Castrate the puppy before summer. |
| él | castre | Que la veterinaria del barrio castre al cerdo más joven del corral.Let the neighborhood vet castrate the youngest pig in the pen. |
| nosotros | castremos | castremos a los machos del establo.Castrate the males in the stable. |
| vosotros | castrad | castrad al potro con ayuda del veterinario.Castrate the colt with the vet's help. |
| ellos | castren | Que los granjeros del valle castren a los animales enfermos a tiempo.Let the farmers in the valley castrate the sick animals in time. |
Imperativo Negativo
Negative Imperative
| Pronoun | Form | Context |
|---|---|---|
| yo | - | - |
| tú | no castres | No no castres al cachorro antes del verano.Do not castrate the puppy before summer. |
| él | no castre | Que la veterinaria del barrio no no castre al cerdo más joven del corral.Let the neighborhood vet not castrate the youngest pig in the pen. |
| nosotros | no castremos | No no castremos a los machos del establo.Let us not castrate the males in the stable. |
| vosotros | no castréis | No no castréis al potro con ayuda del veterinario.Do not castrate the colt with the vet's help. |
| ellos | no castren | Que los granjeros del valle no no castren a los animales enfermos a tiempo.Let the farmers in the valley not castrate the sick animals in time. |
Free web drill
Practice castrar
1 / 1
Presente•yo
Yo ___ al gato callejero este viernes.
I castrate the stray tomcat this Friday.
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 castrar
Related Spanish grammar topics
Concepts that come up every time you conjugate castrar. Each is a short, focused guide.
Common questions
Castrar conjugation — frequently asked
Short, direct answers to what learners search most about castrar.
- What does 'castrar' mean in English?
- In Spanish, 'castrar' means to castrate. It is a regular -AR verb used across all 18 standard Spanish tenses.
- Is castrar an irregular verb in Spanish?
- Castrar is a regular -AR verb. Its endings follow the standard pattern in every tense without stem or root changes.
- How do you conjugate castrar in the present tense?
- Present tense (Presente) of castrar: yo castro, tú castras, él/ella/usted castra, nosotros castramos, vosotros castráis, ellos/ellas/ustedes castran.
- How do you conjugate castrar in the preterite?
- Preterite (Pretérito Indefinido) of castrar: yo castré, tú castraste, él/ella/usted castró, nosotros castramos, vosotros castrasteis, ellos/ellas/ustedes castraron. This tense expresses completed past actions at a defined point in time.
- What is the imperfect tense of castrar?
- Imperfect (Pretérito Imperfecto) of castrar: yo castraba, tú castrabas, él/ella/usted castraba, nosotros castrábamos, vosotros castrabais, ellos/ellas/ustedes castraban. The imperfect describes past habits, ongoing actions, and background states.
- What is the past participle of castrar?
- The past participle of castrar is 'castrado'. It is used to form compound tenses with the auxiliary verb haber — for example, 'he castrado' (I have castrateed), 'has castrado', 'ha castrado'.
- What is the gerundio (present participle) of castrar?
- The gerundio of castrar is 'castrando'. It pairs with estar to form the present continuous (estoy castrando) and other progressive tenses, indicating an action in progress.
Related verbs
Continue with verbs that share the same ending and difficulty band.