requerir
Practice-readyto require
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The stem vowel i changes to ie when stressed: adquiero, adquieres, adquiere, adquirimos, adquirís, adquieren. Only a few -ir verbs have this i→ie change; most have e→ie or e→i.
Conjugation
View endings (Guide)Modo
Subjuntivo
Subjuntivo
Tiempo
Presente de subjuntivo
Presente de subjuntivo
Click a tense to switch
Indicativo — Indicativo
Subjuntivo — Subjuntivo
Imperativo — Imperativo
More tenses are rolling out over time. · Full tables for some supported tenses are visible with Pro.
Formas impersonales
These are the non‑finite verb forms used in combinations and constructions.
- Infinitivo — requerir
- Infinitivo compuesto — haber requerido
- Gerundio — requiriendo
- Gerundio compuesto — habiendo requerido
- Participio — requerido
Key forms
yo
requiero
tú
requieres
él/ella
requiere
Use the present perfect for past actions that have a connection to the present or recent past.
Key forms
yo
he requerido
tú
has requerido
él/ella
ha requerido
Use the preterite to describe completed past actions with a clear beginning or end.
Key forms
yo
requerí
tú
requeriste
él/ella
requerió
Use the imperfect to describe ongoing, habitual, or background actions in the past.
Key forms
yo
requería
tú
requerías
él/ella
requería
Use the pluperfect (pluscuamperfecto) for past actions completed before another past action.
Key forms
yo
había requerido
tú
habías requerido
él/ella
había requerido
Use for past-before-past; mainly literary.
Key forms
yo
hube requerido
tú
hubiste requerido
él/ella
hubo requerido
Use the future to express actions that will happen, predictions, or probability.
Key forms
yo
requeriré
tú
requerirás
él/ella
requerirá
Use the conditional for hypothetical situations, polite requests, or future in the past.
Key forms
yo
requeriría
tú
requerirías
él/ella
requeriría
Use the future perfect for actions that will have been completed by a future time.
Key forms
yo
habré requerido
tú
habrás requerido
él/ella
habrá requerido
Use the conditional perfect for hypothetical past actions or actions that would have been completed.
Key forms
yo
habría requerido
tú
habrías requerido
él/ella
habría requerido
Use the present subjunctive for wishes, doubts, emotions, and after certain conjunctions.
Key forms
yo
requiera
tú
requieras
él/ella
requiera
Use for past actions with present relevance in subjunctive contexts.
Key forms
yo
haya requerido
tú
hayas requerido
él/ella
haya requerido
Use for hypothetical or reported past (e.g. Si viviera…).
Key forms
yo
requeriera (requeriese)
tú
requerieras (requerieses)
él/ella
requeriera (requeriese)
Use for past-before-past in subjunctive contexts.
Key forms
yo
hubiera requerido (hubiese requerido)
tú
hubieras requerido (hubieses requerido)
él/ella
hubiera requerido (hubiese requerido)
Rare; legal/formal style.
Key forms
yo
requeriere
tú
requerieres
él/ella
requeriere
Rare; future perfect in subjunctive contexts.
Key forms
yo
hubiere requerido
tú
hubieres requerido
él/ella
hubiere requerido
Affirmative imperative only. Negative imperative is available as a separate tense.
Key forms
yo
—
tú
requiere
él/ella
requiera
Negative commands: use No + form (e.g. No hables.).
Key forms
yo
—
tú
requieras
él/ella
requiera
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