unir Negative Imperative Conjugation
unir — to join
The negative imperative of unir uses the present subjunctive forms: no unas, no una, no unamos, no unáis, no unan.
unir Negative Imperative Forms
When to Use the Negative Imperative
Use this to tell someone NOT to join things, like 'Don't join those cables' or 'Don't unite those two groups'.
Notes on unir in the Negative Imperative
Unir is regular. All negative commands for -ir verbs use the subjunctive 'a' endings.
Example Sentences
No unas esos dos colores, se ven mal.
Don't join those two colors, they look bad.
tú
No una usted las piezas todavía.
Don't join the pieces yet (formal).
usted
No unamos fuerzas con ellos.
Let's not join forces with them.
nosotros
Common Mistakes
Mistake: no unes
Correct: no unas
Why: Negative commands must use the subjunctive form, not the indicative.
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Related Tenses
Present
yo: uno
The present tense of unir is regular: uno, unes, une, unimos, unís, unen.
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).