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Spanish verb conjugation

interferirConjugation

interferir means to interfere.

irregular (vowel-changing)-ir9 tenses52 forms
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Subjunctive

Imperfect Subjunctive

yointerfiriera
interfirieras
él/ella/ustedinterfiriera
nosotrosinterfiriéramos
vosotrosinterfirierais
ellos/ellas/ustedesinterfirieran

The imperfect subjunctive uses the 'interfir-' stem for all forms (interfiriera, interfirieras).

Present Subjunctive

yointerfiera
interfieras
él/ella/ustedinterfiera
nosotrosinterfiramos
vosotrosinterfiráis
ellos/ellas/ustedesinterfieran

Interferir has a stem change (ie) and a special nosotros/vosotros change (i) in the subjunctive.

Imperative

Negative Imperative

no interfieras
ustedno interfiera
nosotrosno interfiramos
vosotrosno interfiráis
ustedesno interfieran

The negative imperative always uses the present subjunctive forms: no interfieras, no interfiera.

Imperative

interfiere
ustedinterfiera
nosotrosinterfiramos
vosotrosinterferid
ustedesinterfieran

Use 'interfiere' to tell someone to step in, or 'interfiera' for formal requests.

Indicative

Conditional

yointerferiría
interferirías
él/ella/ustedinterferiría
nosotrosinterferiríamos
vosotrosinterferiríais
ellos/ellas/ustedesinterferirían

The conditional of interferir is regular: interferiría, interferirías, etc.

Preterite

yointerferí
interferiste
él/ella/ustedinterfirió
nosotrosinterferimos
vosotrosinterferisteis
ellos/ellas/ustedesinterfirieron

Interferir has a third-person stem change (e -> i) in the preterite: interfirió and interfirieron.

Imperfect

yointerfería
interferías
él/ella/ustedinterfería
nosotrosinterferíamos
vosotrosinterferíais
ellos/ellas/ustedesinterferían

Interferir is completely regular in the imperfect: interfería, interferías, interfería...

Present

yointerfiero
interfieres
él/ella/ustedinterfiere
nosotrosinterferimos
vosotrosinterferís
ellos/ellas/ustedesinterfieren

Interferir is a stem-changing verb in the present tense (e -> ie), except for nosotros and vosotros.

Future

yointerferiré
interferirás
él/ella/ustedinterferirá
nosotrosinterferiremos
vosotrosinterferiréis
ellos/ellas/ustedesinterferirán

Interferir is regular in the future; simply add endings to the infinitive.

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Frequently Asked Questions

What does interferir mean in Spanish?

interferir means "to interfere".

Is interferir a regular or irregular verb?

interferir is a irregular (vowel-changing) -ir verb in Spanish.

How do you conjugate interferir in the present tense?

The present tense of interferir is: yo interfiero, tú interfieres, él/ella/usted interfiere, nosotros interferimos, vosotros interferís, ellos/ellas/ustedes interfieren.

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

The preterite of interferir is: yo interferí, tú interferiste, él/ella/usted interfirió, nosotros interferimos, vosotros interferisteis, ellos/ellas/ustedes interfirieron.

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interferir conjugation cheat sheet

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