definir
to define
Non-Conjugated Forms
definir
to define
definiendo
Present Participle
definido
Used in perfect tenses
Indicative Mood
Used for statements of fact, certainty, and objective reality
| Person | |||||
|---|---|---|---|---|---|
| yo | defino | definí | definía | definiré | definiría |
| tú | defines | definiste | definías | definirás | definirías |
| él/ella/usted | define | definió | definía | definirá | definiría |
| nosotros | definimos | definimos | definíamos | definiremos | definiríamos |
| vosotros | definís | definisteis | definíais | definiréis | definiríais |
| ellos/ellas/ustedes | definen | definieron | definían | definirán | definirían |
| Quick Test | Quick Test | Quick Test | Quick Test | Quick Test |
Perfect Tenses
Compound tenses using auxiliary verb "haber" + past participle
| Person | ||||
|---|---|---|---|---|
| yo | he definido | había definido | habré definido | habría definido |
| tú | has definido | habías definido | habrás definido | habrías definido |
| él/ella/usted | ha definido | había definido | habrá definido | habría definido |
| nosotros | hemos definido | habíamos definido | habremos definido | habríamos definido |
| vosotros | habéis definido | habíais definido | habréis definido | habríais definido |
| ellos/ellas/ustedes | han definido | habían definido | habrán definido | habrían definido |
| Quick Test | Quick Test | Quick Test | Quick Test |
Subjunctive Mood
Used for doubt, emotion, desire, possibility, and hypothetical situations
The imperfect subjunctive has two forms: -ra (more common in speech) and -se (more literary, common in Spain). Both are equally correct and interchangeable.
| Person | Literary / Spain | ||
|---|---|---|---|
| yo | defina | definiera | definiese |
| tú | definas | definieras | definieses |
| él/ella/usted | defina | definiera | definiese |
| nosotros | definamos | definiéramos | definiésemos |
| vosotros | defináis | definierais | definieseis |
| ellos/ellas/ustedes | definan | definieran | definiesen |
| Quick Test | Quick Test | Quick Test |
Literary / Spain
Imperative Mood
Used for commands, requests, and instructions
| Person | |
|---|---|
| yo | - |
| tú | define |
| él/ella/usted | defina |
| nosotros | definamos |
| vosotros | definid |
| ellos/ellas/ustedes | definan |
| Quick Test |
🎯 Practice definir
Test your knowledge of definir conjugations across multiple tenses
Usage Tips
- Indicative: Use for facts, statements, and objective reality
- Subjunctive: Use after expressions of doubt, emotion, desire, or uncertainty
- Imperative: Use for direct commands and requests
- Perfect Tenses: Use to express actions completed relative to another time
Examples and Common Phrases
Examples
Common Phrases
Verb Information
Category
Communication
Ending Type
-ir verb
Verb Type
Regular verb
Importance Rank
#78 out of 100
Usage Tips
Regular Verb Pattern
This verb follows the regular -ir pattern. Remove the -ir ending and add the appropriate endings for each person.
Practice Suggestion
Try creating your own sentences with this verb. Start with simple present tense sentences and gradually work up to more complex constructions.