-ar verb C1 · Advanced

Conjugate vacilar in Spanish

to hesitate

vacilar is a regular -ar verb ranked #1309 among the most common Spanish verbs. For example: "No vaciles en pedir ayuda si la necesitas." (Don't hesitate to ask for help if you need it.). Use the tables below for full conjugation across all 7 tenses.

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Describes current actions, habits, and general truths. The most frequently used tense — master it first.

Pronoun Conjugation
yo vacilo
vacilas
él/ella/Ud. vacila
nosotros vacilamos
vosotros vaciláis
ellos/ellas/Uds. vacilan
Example

Mis amigos siempre me vacilan con mis errores.

My friends always tease me about my mistakes.

Describes completed past actions with a clear start and end. Key signals: ayer, el lunes pasado, de repente.

Pronoun Conjugation
yo vacilé
vacilaste
él/ella/Ud. vaciló
nosotros vacilamos
vosotros vacilasteis
ellos/ellas/Uds. vacilaron
Example

Ayer yo vacilé.

Yesterday I hesitate.

Describes habitual past actions, background context, and ongoing states. Key signals: siempre, normalmente, cuando era niño.

Pronoun Conjugation
yo vacilaba
vacilabas
él/ella/Ud. vacilaba
nosotros vacilábamos
vosotros vacilabais
ellos/ellas/Uds. vacilaban
Example

Antes yo vacilaba con frecuencia.

Before, I used to hesitate often.

Describes future events and predictions. In everyday speech, ir a + infinitive is often preferred for planned events.

Pronoun Conjugation
yo vacilaré
vacilarás
él/ella/Ud. vacilará
nosotros vacilaremos
vosotros vacilaréis
ellos/ellas/Uds. vacilarán
Example

Mañana yo vacilaré.

Tomorrow I will hesitate.

Expresses what would happen under certain conditions — equivalent to "would" in English. Also used for polite requests.

Pronoun Conjugation
yo vacilaría
vacilarías
él/ella/Ud. vacilaría
nosotros vacilaríamos
vosotros vacilaríais
ellos/ellas/Uds. vacilarían
Example

Si pudiera, yo vacilaría.

If I could, I would hesitate.

Used in clauses expressing wishes, doubt, emotion, or uncertainty — typically after que. Triggers: querer, esperar, dudar, ojalá.

Pronoun Conjugation
yo vacile
vaciles
él/ella/Ud. vacile
nosotros vacilemos
vosotros vaciléis
ellos/ellas/Uds. vacilen
Example

No vaciles en pedir ayuda si la necesitas.

Don't hesitate to ask for help if you need it.

Used to give commands and direct requests. Affirmative and negative forms differ significantly in Spanish.

Pronoun Conjugation
yo -
vacila
él/ella/Ud. vacile
nosotros vacilemos
vosotros vacilad
ellos/ellas/Uds. vacilen
Example

¡Vacila!

Hesitate!

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Example sentences

Common phrases with vacilar

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