-ar verb C1 · Advanced

Conjugate corroborar in Spanish

to corroborate, to confirm

corroborar is a regular -ar verb ranked #2080 among the most common Spanish verbs. For example: "Los testigos corroboraron su coartada." (The witnesses corroborated his alibi.). Use the tables below for full conjugation across all 7 tenses.

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

Pronoun Conjugation
yo corroboro
corroboras
él/ella/Ud. corrobora
nosotros corroboramos
vosotros corroboráis
ellos/ellas/Uds. corroboran
Example

Los hechos corroboran la teoría.

The facts confirm the theory.

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

Pronoun Conjugation
yo corroboré
corroboraste
él/ella/Ud. corroboró
nosotros corroboramos
vosotros corroborasteis
ellos/ellas/Uds. corroboraron
Example

Los testigos corroboraron su coartada.

The witnesses corroborated his alibi.

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

Pronoun Conjugation
yo corroboraba
corroborabas
él/ella/Ud. corroboraba
nosotros corroborábamos
vosotros corroborabais
ellos/ellas/Uds. corroboraban
Example

Antes yo corroboraba con frecuencia.

Before, I used to corroborate, to confirm often.

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

Pronoun Conjugation
yo corroboraré
corroborarás
él/ella/Ud. corroborará
nosotros corroboraremos
vosotros corroboraréis
ellos/ellas/Uds. corroborarán
Example

Mañana yo corroboraré.

Tomorrow I will corroborate, to confirm.

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

Pronoun Conjugation
yo corroboraría
corroborarías
él/ella/Ud. corroboraría
nosotros corroboraríamos
vosotros corroboraríais
ellos/ellas/Uds. corroborarían
Example

Si pudiera, yo corroboraría.

If I could, I would corroborate, to confirm.

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

Pronoun Conjugation
yo corrobore
corrobores
él/ella/Ud. corrobore
nosotros corroboremos
vosotros corroboréis
ellos/ellas/Uds. corroboren
Example

Espero que tú corrobores.

I hope that you corroborate, to confirm.

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

Pronoun Conjugation
yo -
corrobora
él/ella/Ud. corrobore
nosotros corroboremos
vosotros corroborad
ellos/ellas/Uds. corroboren
Example

¡Corrobora!

Corroborate, to confirm!

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Example sentences

Common phrases with corroborar

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