Conjugate contaminar in Spanish

to contaminate / to pollute

contaminar is a regular -ar verb ranked #444 among the most common Spanish verbs. For example: "Necesito contaminar esto." (I need to contaminate / to pollute this.). 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 contamino
contaminas
él/ella/Ud. contamina
nosotros contaminamos
vosotros contamináis
ellos/ellas/Uds. contaminan
Example

Yo contamino todos los días.

I contaminate / to pollute every day.

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

Pronoun Conjugation
yo contaminé
contaminaste
él/ella/Ud. contaminó
nosotros contaminamos
vosotros contaminasteis
ellos/ellas/Uds. contaminaron
Example

Ayer yo contaminé.

Yesterday I contaminate / to pollute.

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

Pronoun Conjugation
yo contaminaba
contaminabas
él/ella/Ud. contaminaba
nosotros contaminábamos
vosotros contaminabais
ellos/ellas/Uds. contaminaban
Example

Antes yo contaminaba con frecuencia.

Before, I used to contaminate / to pollute often.

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

Pronoun Conjugation
yo contaminaré
contaminarás
él/ella/Ud. contaminará
nosotros contaminaremos
vosotros contaminaréis
ellos/ellas/Uds. contaminarán
Example

Mañana yo contaminaré.

Tomorrow I will contaminate / to pollute.

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

Pronoun Conjugation
yo contaminaría
contaminarías
él/ella/Ud. contaminaría
nosotros contaminaríamos
vosotros contaminaríais
ellos/ellas/Uds. contaminarían
Example

Si pudiera, yo contaminaría.

If I could, I would contaminate / to pollute.

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

Pronoun Conjugation
yo contamine
contamines
él/ella/Ud. contamine
nosotros contaminemos
vosotros contaminéis
ellos/ellas/Uds. contaminen
Example

Espero que tú contamines.

I hope that you contaminate / to pollute.

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

Pronoun Conjugation
yo -
contamina
él/ella/Ud. contamine
nosotros contaminemos
vosotros contaminad
ellos/ellas/Uds. contaminen
Example

¡Contamina!

Contaminate / to pollute!

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Example sentences

Common phrases with contaminar

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