-ar verb irregular · spelling-change -zar A2 · Elementary

Conjugate adelgazar in Spanish

to lose weight

adelgazar is an irregular -ar verb ranked #220 among the most common Spanish verbs. For example: "Yo adelgazo todos los días." (I lose weight every day.). Use the tables below for full conjugation across all 7 tenses.

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⚡ Irregular verb — adelgazar (spelling-change -zar) 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 adelgazo
adelgazas
él/ella/Ud. adelgaza
nosotros adelgazamos
vosotros adelgazáis
ellos/ellas/Uds. adelgazan
Example

Yo adelgazo todos los días.

I lose weight every day.

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

Pronoun Conjugation
yo adelgacé *
adelgazaste
él/ella/Ud. adelgazó
nosotros adelgazamos
vosotros adelgazasteis
ellos/ellas/Uds. adelgazaron
Example

Nosotros adelgazamos juntos.

We lose weight together.

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

Pronoun Conjugation
yo adelgazaba
adelgazabas
él/ella/Ud. adelgazaba
nosotros adelgazábamos
vosotros adelgazabais
ellos/ellas/Uds. adelgazaban
Example

Antes yo adelgazaba con frecuencia.

Before, I used to lose weight often.

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

Pronoun Conjugation
yo adelgazaré
adelgazarás
él/ella/Ud. adelgazará
nosotros adelgazaremos
vosotros adelgazaréis
ellos/ellas/Uds. adelgazarán
Example

Mañana yo adelgazaré.

Tomorrow I will lose weight.

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

Pronoun Conjugation
yo adelgazaría
adelgazarías
él/ella/Ud. adelgazaría
nosotros adelgazaríamos
vosotros adelgazaríais
ellos/ellas/Uds. adelgazarían
Example

Si pudiera, yo adelgazaría.

If I could, I would lose weight.

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

Pronoun Conjugation
yo adelgace *
adelgaces *
él/ella/Ud. adelgace *
nosotros adelgacemos *
vosotros adelgacéis *
ellos/ellas/Uds. adelgacen *
Example

Quiero que tú adelgaces más.

I want you to lose weight more.

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

Pronoun Conjugation
yo -
adelgaza
él/ella/Ud. adelgaze
nosotros adelgazemos
vosotros adelgazad
ellos/ellas/Uds. adelgazen
Example

Él adelgaza con frecuencia.

He lose weights often.

Test yourself

Type the correct conjugation for each prompt.

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Example sentences

Common phrases with adelgazar

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