The Portuguese verb "definir" means "to define" in English. It is a regular verb. Below you'll find the complete conjugation tables for "definir" across all 5 tenses. New to Portuguese verbs? Start with the Portuguese verb guide.
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How to Conjugate "definir" in the Present Tense
Presente do indicativo Actions happening now or regularly| Person | English | Conjugation |
|---|---|---|
| eu | I | defino |
| tu | you (informal) | defines |
| ele/ela/você | he/she/you (formal) | define |
| nós | we | definimos |
| vós | you all (formal) | definis |
| eles/elas/vocês | they/you all | definem |
Ela define o plano de ação.
She defines the action plan.
How to Conjugate "definir" in the Past (completed) Tense
Pretérito perfeito simples Actions completed in the past| Person | English | Conjugation |
|---|---|---|
| eu | I | defini |
| tu | you (informal) | definiste |
| ele/ela/você | he/she/you (formal) | definiu |
| nós | we | definimos |
| vós | you all (formal) | definistes |
| eles/elas/vocês | they/you all | definiram |
Ele definiu o plano.
He defined the plan.
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Pretérito imperfeito Actions that were ongoing in the past| Person | English | Conjugation |
|---|---|---|
| eu | I | definia |
| tu | you (informal) | definias |
| ele/ela/você | he/she/you (formal) | definia |
| nós | we | definíamos |
| vós | you all (formal) | definíeis |
| eles/elas/vocês | they/you all | definiam |
Ele definia o estilo da casa.
He used to define the house style.
How to Conjugate "definir" in the Future Tense
Futuro do presente Actions that will happen| Person | English | Conjugation |
|---|---|---|
| eu | I | definirei |
| tu | you (informal) | definirás |
| ele/ela/você | he/she/you (formal) | definirá |
| nós | we | definiremos |
| vós | you all (formal) | definireis |
| eles/elas/vocês | they/you all | definirão |
Ele definirá o novo horário.
He will define the new schedule.
How to Conjugate "definir" in the Would (conditional) Tense
Condicional Hypothetical actions| Person | English | Conjugation |
|---|---|---|
| eu | I | definiria |
| tu | you (informal) | definirias |
| ele/ela/você | he/she/you (formal) | definiria |
| nós | we | definiríamos |
| vós | you all (formal) | definiríeis |
| eles/elas/vocês | they/you all | definiriam |
Ele definiria o horário da reunião.
He would define the meeting time.
Frequently Asked Questions About "definir"
Is "definir" regular or irregular in Portuguese?
"Definir" is a regular Portuguese verb that follows standard conjugation patterns for its verb group.
What does "definir" mean in English?
The Portuguese verb "definir" means "to define" in English.
How do you conjugate "definir" in the present tense?
In the present tense (Presente do indicativo): eu → defino, tu → defines, ele/ela/você → define, nós → definimos, vós → definis, eles/elas/vocês → definem.
How many tenses does "definir" have in Portuguese?
"Definir" is conjugated across 5 tenses in Portuguese: Present, Past (completed), Past (ongoing), Future, Would (conditional).
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