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Complete Conjugation Tables

Reference all tenses and moods

Subjunctive

Imperfect Subjunctive

yocontaminara
contaminaras
él/ella/ustedcontaminara
nosotroscontamináramos
vosotroscontaminarais
ellos/ellas/ustedescontaminaran

The imperfect subjunctive of contaminar (contaminara/contaminase) expresses hypothetical or past subjunctive situations.

Present Subjunctive

yocontamine
contamines
él/ella/ustedcontamine
nosotroscontaminemos
vosotroscontaminéis
ellos/ellas/ustedescontaminen

The present subjunctive of contaminar (contamine, contamines, etc.) is used after expressions of doubt, desire, emotion, or uncertainty.

Imperative

Negative Imperative

no contamines
ustedno contamine
nosotrosno contaminemos
vosotrosno contaminéis
ustedesno contaminen

Negative commands for contaminar use the present subjunctive, like 'no contamines' (tú) or 'no contaminen' (ustedes).

Imperative

contamina
ustedcontamine
nosotroscontaminemos
vosotroscontaminad
ustedescontaminen

Use the imperative of contaminar for direct commands like 'contamina' (tú) or 'contaminen' (ustedes).

Indicative

Conditional

yocontaminaría
contaminarías
él/ella/ustedcontaminaría
nosotroscontaminaríamos
vosotroscontaminaríais
ellos/ellas/ustedescontaminarían

The conditional of contaminar (contaminaría, contaminarías, etc.) expresses hypothetical outcomes ('would pollute').

Preterite

yocontaminé
contaminaste
él/ella/ustedcontaminó
nosotroscontaminamos
vosotroscontaminasteis
ellos/ellas/ustedescontaminaron

The preterite of contaminar is regular: contaminé, contaminaste, contaminó, contaminamos, contaminasteis, contaminaron.

Imperfect

yocontaminaba
contaminabas
él/ella/ustedcontaminaba
nosotroscontaminábamos
vosotroscontaminabais
ellos/ellas/ustedescontaminaban

The imperfect of contaminar (contaminaba, contaminabas, etc.) describes ongoing or habitual pollution in the past.

Present

yocontamino
contaminas
él/ella/ustedcontamina
nosotroscontaminamos
vosotroscontamináis
ellos/ellas/ustedescontaminan

The present indicative of contaminar (contamino, contaminas, etc.) describes current or habitual pollution.

Future

yocontaminaré
contaminarás
él/ella/ustedcontaminará
nosotroscontaminaremos
vosotroscontaminaréis
ellos/ellas/ustedescontaminarán

The future tense of contaminar (contaminaré, contaminarás, etc.) indicates actions that will happen.

Practice Conjugations

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Frequently Asked Questions

What does contaminar mean in Spanish?

contaminar means "to pollute".

Is contaminar a regular or irregular verb?

contaminar is a regular -ar verb in Spanish.

How do you conjugate contaminar in the present tense?

The present tense of contaminar is: yo contamino, tú contaminas, él/ella/usted contamina, nosotros contaminamos, vosotros contamináis, ellos/ellas/ustedes contaminan.

How do you conjugate contaminar in the preterite (past tense)?

The preterite of contaminar is: yo contaminé, tú contaminaste, él/ella/usted contaminó, nosotros contaminamos, vosotros contaminasteis, ellos/ellas/ustedes contaminaron.

Free printable reference

contaminar conjugation cheat sheet

contaminar conjugation cheat sheet — present, preterite, imperfect, future and conditional forms