-ar verb irregular · spelling-change -car B1 · Intermediate

Conjugate certificar in Spanish

to certify

certificar is an irregular -ar verb ranked #397 among the most common Spanish verbs. For example: "Yo certifico todos los días." (I certify every day.). Use the tables below for full conjugation across all 7 tenses.

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⚡ Irregular verb — certificar (spelling-change -car) does not follow standard -ar 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 certifico
certificas
él/ella/Ud. certifica
nosotros certificamos
vosotros certificáis
ellos/ellas/Uds. certifican
Example

Yo certifico todos los días.

I certify every day.

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

Pronoun Conjugation
yo certifiqué *
certificaste
él/ella/Ud. certificó
nosotros certificamos
vosotros certificasteis
ellos/ellas/Uds. certificaron
Example

Nosotros certificamos juntos.

We certify together.

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

Pronoun Conjugation
yo certificaba
certificabas
él/ella/Ud. certificaba
nosotros certificábamos
vosotros certificabais
ellos/ellas/Uds. certificaban
Example

Antes yo certificaba con frecuencia.

Before, I used to certify often.

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

Pronoun Conjugation
yo certificaré
certificarás
él/ella/Ud. certificará
nosotros certificaremos
vosotros certificaréis
ellos/ellas/Uds. certificarán
Example

Mañana yo certificaré.

Tomorrow I will certify.

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

Pronoun Conjugation
yo certificaría
certificarías
él/ella/Ud. certificaría
nosotros certificaríamos
vosotros certificaríais
ellos/ellas/Uds. certificarían
Example

Si pudiera, yo certificaría.

If I could, I would certify.

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

Pronoun Conjugation
yo certifique *
certifiques *
él/ella/Ud. certifique *
nosotros certifiquemos *
vosotros certifiquéis *
ellos/ellas/Uds. certifiquen *
Example

Quiero que tú certifiques más.

I want you to certify more.

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

Pronoun Conjugation
yo -
certifica
él/ella/Ud. certifice
nosotros certificemos
vosotros certificad
ellos/ellas/Uds. certificen
Example

Él certifica con frecuencia.

He certifys often.

Test yourself

Type the correct conjugation for each prompt.

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Example sentences

Common phrases with certificar

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