-ar verb irregular · stem-changing e>ie B1 · Intermediate

Conjugate calentar in Spanish

to heat / to warm up

calentar is an irregular -ar verb ranked #432 among the most common Spanish verbs. For example: "Necesito calentar esto." (I need to heat / to warm up this.). Use the tables below for full conjugation across all 7 tenses.

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⚡ Irregular verb — calentar (stem-changing e>ie) 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 caliento *
calientas *
él/ella/Ud. calienta *
nosotros calentamos
vosotros calentáis
ellos/ellas/Uds. calientan *
Example

Yo caliento todos los días.

I heat / to warm up every day.

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

Pronoun Conjugation
yo calenté
calentaste
él/ella/Ud. calentó
nosotros calentamos
vosotros calentasteis
ellos/ellas/Uds. calentaron
Example

Ayer yo calenté.

Yesterday I heat / to warm up.

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

Pronoun Conjugation
yo calentaba
calentabas
él/ella/Ud. calentaba
nosotros calentábamos
vosotros calentabais
ellos/ellas/Uds. calentaban
Example

Antes yo calentaba con frecuencia.

Before, I used to heat / to warm up often.

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

Pronoun Conjugation
yo calentaré
calentarás
él/ella/Ud. calentará
nosotros calentaremos
vosotros calentaréis
ellos/ellas/Uds. calentarán
Example

Mañana yo calentaré.

Tomorrow I will heat / to warm up.

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

Pronoun Conjugation
yo calentaría
calentarías
él/ella/Ud. calentaría
nosotros calentaríamos
vosotros calentaríais
ellos/ellas/Uds. calentarían
Example

Si pudiera, yo calentaría.

If I could, I would heat / to warm up.

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

Pronoun Conjugation
yo caliente *
calientes *
él/ella/Ud. caliente *
nosotros calentemos
vosotros calentéis
ellos/ellas/Uds. calienten *
Example

Espero que tú calientes.

I hope that you heat / to warm up.

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

Pronoun Conjugation
yo -
calenta
él/ella/Ud. calente
nosotros calentemos
vosotros calentad
ellos/ellas/Uds. calenten
Example

¡Calenta!

Heat / to warm up!

Test yourself

Type the correct conjugation for each prompt.

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Example sentences

Common phrases with calentar

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