unir Present Conjugation
unir — to join
The present tense of unir is regular: uno, unes, une, unimos, unís, unen.
unir Present Forms
When to Use the Present
Use the present tense to talk about things you are currently connecting or joining, such as pieces of a puzzle or groups of people. It is also used for general facts like how a bridge joins two cities.
Notes on unir in the Present
Unir is a completely regular -ir verb in the present tense. It follows the standard pattern for all endings.
Example Sentences
Yo uno las piezas del rompecabezas.
I join the pieces of the puzzle.
yo
Esta carretera une los dos pueblos.
This road joins the two towns.
él/ella/usted
Nosotros unimos nuestras fuerzas para el proyecto.
We join our forces for the project.
nosotros
Common Mistakes
Mistake: Using 'unemos' for nosotros.
Correct: unimos
Why: Learners often forget that -ir verbs use -imos in the present tense, unlike -er verbs which use -emos.
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Related Tenses
Preterite
yo: uní
Unir is regular in the preterite: uní, uniste, unió, unimos, unisteis, unieron.
Imperfect
yo: unía
The imperfect of unir uses standard -ía endings: unía, unías, unía, uníamos, uníais, unían.
Future
yo: uniré
The future of unir is formed by adding endings to the infinitive: uniré, unirás, unirá, uniremos, uniréis, unirán.
Conditional
yo: uniría
The conditional of unir uses the infinitive plus -ía: uniría, unirías, uniría, uniríamos, uniríais, unirían.
Present Subjunctive
yo: una
The present subjunctive of unir follows the regular -ir pattern: una, unas, una, unamos, unáis, unan.
Imperfect Subjunctive
yo: uniera
The imperfect subjunctive of unir is regular: uniera, unieras, uniera, uniéramos, unierais, unieran.
Affirmative Imperative
yo: une
The imperative of unir gives direct commands: une (tú), unid (vosotros), una (usted).
Negative Imperative
yo: no unas
The negative imperative of unir uses the present subjunctive forms: no unas, no una, no unamos, no unáis, no unan.