-ir verb irregular · spelling-change -uir A2 · Elementary

Conjugate contribuir in Spanish

to contribute

contribuir is an irregular -ir verb ranked #164 among the most common Spanish verbs. For example: "Yo contribuyo todos los días." (I contribute every day.). Use the tables below for full conjugation across all 7 tenses.

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⚡ Irregular verb — contribuir (spelling-change -uir) does not follow standard -ir patterns. Pay close attention to the stems in each tense.

Describes current actions, habits, and general truths. The most frequently used tense — master it first.

Pronoun Conjugation
yo contribuyo *
contribuyes *
él/ella/Ud. contribuye *
nosotros contribuimos
vosotros contribuís
ellos/ellas/Uds. contribuyen *
Example

Yo contribuyo todos los días.

I contribute every day.

Describes completed past actions with a clear start and end. Key signals: ayer, el lunes pasado, de repente.

Pronoun Conjugation
yo contribuí
contribuiste
él/ella/Ud. contribuyó *
nosotros contribuimos
vosotros contribuisteis
ellos/ellas/Uds. contribuyeron *
Example

Nosotros contribuimos juntos.

We contribute together.

Describes habitual past actions, background context, and ongoing states. Key signals: siempre, normalmente, cuando era niño.

Pronoun Conjugation
yo contribuía
contribuías
él/ella/Ud. contribuía
nosotros contribuíamos
vosotros contribuíais
ellos/ellas/Uds. contribuían
Example

Antes yo contribuía con frecuencia.

Before, I used to contribute often.

Describes future events and predictions. In everyday speech, ir a + infinitive is often preferred for planned events.

Pronoun Conjugation
yo contribuiré
contribuirás
él/ella/Ud. contribuirá
nosotros contribuiremos
vosotros contribuiréis
ellos/ellas/Uds. contribuirán
Example

Mañana yo contribuiré.

Tomorrow I will contribute.

Expresses what would happen under certain conditions — equivalent to "would" in English. Also used for polite requests.

Pronoun Conjugation
yo contribuiría
contribuirías
él/ella/Ud. contribuiría
nosotros contribuiríamos
vosotros contribuiríais
ellos/ellas/Uds. contribuirían
Example

Si pudiera, yo contribuiría.

If I could, I would contribute.

Used in clauses expressing wishes, doubt, emotion, or uncertainty — typically after que. Triggers: querer, esperar, dudar, ojalá.

Pronoun Conjugation
yo contribuya *
contribuyas *
él/ella/Ud. contribuya *
nosotros contribuyamos *
vosotros contribuyáis *
ellos/ellas/Uds. contribuyan *
Example

Quiero que tú contribuyas más.

I want you to contribute more.

Used to give commands and direct requests. Affirmative and negative forms differ significantly in Spanish.

Pronoun Conjugation
yo -
contribue
él/ella/Ud. contribua
nosotros contribuamos
vosotros contribuid
ellos/ellas/Uds. contribuan
Example

¡Contribue!

Contribute!

Test yourself

Type the correct conjugation for each prompt.

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Example sentences

Common phrases with contribuir

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