definir
Practice-readyto define
Follows model
The standard model for regular -ir verbs. Remove -ir and add: -o, -es, -e, -imos, -ís, -en. The nosotros and vosotros forms (-imos, -ís) distinguish -ir from -er verbs.
Conjugation
View endings (Guide)Modo
Indicativo
Indicative
Tiempo
Presente
Present Indicative
Click a tense to switch
Indicativo — Indicative
Subjuntivo — Subjunctive
Imperativo — Imperative
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 — definir
- Infinitivo compuesto — haber definido
- Gerundio — difiniendo
- Gerundio compuesto — habiendo definido
- Participio — definido
Recommended next Try Present Subjunctive →
Key forms
yo
defino
tú
defines
él/ella
define
Use the present perfect for past actions that have a connection to the present or recent past.
Key forms
yo
he definido
tú
has definido
él/ella
ha definido
Use the preterite to describe completed past actions with a clear beginning or end.
Key forms
yo
definí
tú
definiste
él/ella
definió
Use the imperfect to describe ongoing, habitual, or background actions in the past.
Key forms
yo
definía
tú
definías
él/ella
definía
Use the pluperfect (pluscuamperfecto) for past actions completed before another past action.
Key forms
yo
había definido
tú
habías definido
él/ella
había definido
Use for past-before-past; mainly literary.
Key forms
yo
hube definido
tú
hubiste definido
él/ella
hubo definido
Use the future to express actions that will happen, predictions, or probability.
Key forms
yo
definiré
tú
definirás
él/ella
definirá
Use the conditional for hypothetical situations, polite requests, or future in the past.
Key forms
yo
definiría
tú
definirías
él/ella
definiría
Use the future perfect for actions that will have been completed by a future time.
Key forms
yo
habré definido
tú
habrás definido
él/ella
habrá definido
Use the conditional perfect for hypothetical past actions or actions that would have been completed.
Key forms
yo
habría definido
tú
habrías definido
él/ella
habría definido
Use the present subjunctive for wishes, doubts, emotions, and after certain conjunctions.
Key forms
yo
defina
tú
definas
él/ella
defina
Use for past actions with present relevance in subjunctive contexts.
Key forms
yo
haya definido
tú
hayas definido
él/ella
haya definido
Use for hypothetical or reported past (e.g. Si viviera…).
Key forms
yo
definiera (definiese)
tú
definieras (definieses)
él/ella
definiera (definiese)
Use for past-before-past in subjunctive contexts.
Key forms
yo
hubiera definido (hubiese definido)
tú
hubieras definido (hubieses definido)
él/ella
hubiera definido (hubiese definido)
Rare; legal/formal style.
Key forms
yo
definiere
tú
definieres
él/ella
definiere
Rare; future perfect in subjunctive contexts.
Key forms
yo
hubiere definido
tú
hubieres definido
él/ella
hubiere definido
Affirmative imperative only. Negative imperative is available as a separate tense.
Key forms
yo
—
tú
define
él/ella
defina
Negative commands: use No + form (e.g. No hables.).
Key forms
yo
—
tú
definas
él/ella
defina
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