-ar verb C1 · Advanced

Conjugate fermentar in Spanish

to ferment

fermentar is a regular -ar verb ranked #1871 among the most common Spanish verbs. For example: "La uva necesita fermentar durante varias semanas para convertirse en vino." (The grape needs to ferment for several weeks to become wine.). 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 fermento
fermentas
él/ella/Ud. fermenta
nosotros fermentamos
vosotros fermentáis
ellos/ellas/Uds. fermentan
Example

El pan fermenta mejor en un lugar cálido y húmedo.

The bread ferments better in a warm and humid place.

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

Pronoun Conjugation
yo fermenté
fermentaste
él/ella/Ud. fermentó
nosotros fermentamos
vosotros fermentasteis
ellos/ellas/Uds. fermentaron
Example

Ayer yo fermenté.

Yesterday I ferment.

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

Pronoun Conjugation
yo fermentaba
fermentabas
él/ella/Ud. fermentaba
nosotros fermentábamos
vosotros fermentabais
ellos/ellas/Uds. fermentaban
Example

Los antiguos egipcios ya fermentaban la cerveza hace miles de años.

The ancient Egyptians were already fermenting beer thousands of years ago.

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

Pronoun Conjugation
yo fermentaré
fermentarás
él/ella/Ud. fermentará
nosotros fermentaremos
vosotros fermentaréis
ellos/ellas/Uds. fermentarán
Example

Mañana yo fermentaré.

Tomorrow I will ferment.

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

Pronoun Conjugation
yo fermentaría
fermentarías
él/ella/Ud. fermentaría
nosotros fermentaríamos
vosotros fermentaríais
ellos/ellas/Uds. fermentarían
Example

Si pudiera, yo fermentaría.

If I could, I would ferment.

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

Pronoun Conjugation
yo fermente
fermentes
él/ella/Ud. fermente
nosotros fermentemos
vosotros fermentéis
ellos/ellas/Uds. fermenten
Example

Espero que tú fermentes.

I hope that you ferment.

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

Pronoun Conjugation
yo -
fermenta
él/ella/Ud. fermente
nosotros fermentemos
vosotros fermentad
ellos/ellas/Uds. fermenten
Example

El pan fermenta mejor en un lugar cálido y húmedo.

The bread ferments better in a warm and humid place.

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Example sentences

Common phrases with fermentar

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