-ar verb C1 · Advanced

Conjugate reaccionar in Spanish

to react

reaccionar is a regular -ar verb ranked #2335 among the most common Spanish verbs. For example: "Reaccionó con calma ante el problema." (He reacted calmly to the problem.). 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 reacciono
reaccionas
él/ella/Ud. reacciona
nosotros reaccionamos
vosotros reaccionáis
ellos/ellas/Uds. reaccionan
Example

Yo reacciono todos los días.

I react every day.

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

Pronoun Conjugation
yo reaccioné
reaccionaste
él/ella/Ud. reaccionó
nosotros reaccionamos
vosotros reaccionasteis
ellos/ellas/Uds. reaccionaron
Example

¿Cómo reaccionaste cuando lo supiste?

How did you react when you found out?

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

Pronoun Conjugation
yo reaccionaba
reaccionabas
él/ella/Ud. reaccionaba
nosotros reaccionábamos
vosotros reaccionabais
ellos/ellas/Uds. reaccionaban
Example

Antes yo reaccionaba con frecuencia.

Before, I used to react often.

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

Pronoun Conjugation
yo reaccionaré
reaccionarás
él/ella/Ud. reaccionará
nosotros reaccionaremos
vosotros reaccionaréis
ellos/ellas/Uds. reaccionarán
Example

Mañana yo reaccionaré.

Tomorrow I will react.

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

Pronoun Conjugation
yo reaccionaría
reaccionarías
él/ella/Ud. reaccionaría
nosotros reaccionaríamos
vosotros reaccionaríais
ellos/ellas/Uds. reaccionarían
Example

Si pudiera, yo reaccionaría.

If I could, I would react.

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

Pronoun Conjugation
yo reaccione
reacciones
él/ella/Ud. reaccione
nosotros reaccionemos
vosotros reaccionéis
ellos/ellas/Uds. reaccionen
Example

Espero que tú reacciones.

I hope that you react.

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

Pronoun Conjugation
yo -
reacciona
él/ella/Ud. reaccione
nosotros reaccionemos
vosotros reaccionad
ellos/ellas/Uds. reaccionen
Example

¡Reacciona!

React!

Test yourself

Type the correct conjugation for each prompt.

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Example sentences

Common phrases with reaccionar

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