-ar verb C1 · Advanced

Conjugate caducar in Spanish

to expire

caducar is a regular -ar verb ranked #1783 among the most common Spanish verbs. For example: "Mi pasaporte caduca el mes que viene." (My passport expires next month.). 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 caduco
caducas
él/ella/Ud. caduca
nosotros caducamos
vosotros caducáis
ellos/ellas/Uds. caducan
Example

Mi pasaporte caduca el mes que viene.

My passport expires next month.

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

Pronoun Conjugation
yo caduqué
caducaste
él/ella/Ud. caducó
nosotros caducamos
vosotros caducasteis
ellos/ellas/Uds. caducaron
Example

Estos medicamentos ya caducaron.

These medications have already expired.

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

Pronoun Conjugation
yo caducaba
caducabas
él/ella/Ud. caducaba
nosotros caducábamos
vosotros caducabais
ellos/ellas/Uds. caducaban
Example

Antes yo caducaba con frecuencia.

Before, I used to expire often.

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

Pronoun Conjugation
yo caducaré
caducarás
él/ella/Ud. caducará
nosotros caducaremos
vosotros caducaréis
ellos/ellas/Uds. caducarán
Example

Mañana yo caducaré.

Tomorrow I will expire.

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

Pronoun Conjugation
yo caducaría
caducarías
él/ella/Ud. caducaría
nosotros caducaríamos
vosotros caducaríais
ellos/ellas/Uds. caducarían
Example

Si pudiera, yo caducaría.

If I could, I would expire.

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

Pronoun Conjugation
yo caduque
caduques
él/ella/Ud. caduque
nosotros caduquemos
vosotros caduquéis
ellos/ellas/Uds. caduquen
Example

No dejes que caduque tu licencia de conducir.

Don't let your driver's license expire.

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

Pronoun Conjugation
yo -
caduca
él/ella/Ud. caduque
nosotros caduquemos
vosotros caducad
ellos/ellas/Uds. caduquen
Example

Mi pasaporte caduca el mes que viene.

My passport expires next month.

Test yourself

Type the correct conjugation for each prompt.

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Example sentences

Common phrases with caducar

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