Inklingo
Explore:

Complete Conjugation Tables

Reference all tenses and moods

Subjunctive

Imperfect Subjunctive

yoalertara
alertaras
él/ella/ustedalertara
nosotrosalertáramos
vosotrosalertarais
ellos/ellas/ustedesalertaran

The imperfect subjunctive (alertara/alertase) is used for hypothetical past situations, politeness, or wishes.

Present Subjunctive

yoalerte
alertes
él/ella/ustedalerte
nosotrosalertemos
vosotrosalertéis
ellos/ellas/ustedesalerten

The present subjunctive (alerte, alertes, alertemos, alertéis, alerten) is used after expressions of doubt, desire, emotion, or uncertainty.

Imperative

Negative Imperative

no alertes
ustedno alerte
nosotrosno alertemos
vosotrosno alertéis
ustedesno alerten

Use 'no alertes' (tú), 'no alerte' (usted), 'no alertemos' (nosotros), 'no alertéis' (vosotros), 'no alerten' (ustedes) for negative commands.

Imperative

alerta
ustedalerte
nosotrosalertemos
vosotrosalertad
ustedesalerten

Use 'alerta' (tú), 'alerte' (usted), 'alertemos' (nosotros), 'alertad' (vosotros), 'alerten' (ustedes) for direct commands.

Indicative

Conditional

yoalertaría
alertarías
él/ella/ustedalertaría
nosotrosalertaríamos
vosotrosalertaríais
ellos/ellas/ustedesalertarían

The conditional of 'alertar' (alertaría, alertarías, alertaría, alertaríamos, alertaríais, alertarían) is used for hypotheticals, polite requests, and future-in-the-past.

Preterite

yoalerté
alertaste
él/ella/ustedalertó
nosotrosalertamos
vosotrosalertasteis
ellos/ellas/ustedesalertaron

The preterite of 'alertar' is regular: alerté, alertaste, alertó, alertamos, alertasteis, alertaron.

Imperfect

yoalertaba
alertabas
él/ella/ustedalertaba
nosotrosalertábamos
vosotrosalertabais
ellos/ellas/ustedesalertaban

The imperfect of 'alertar' (alertaba, alertabas, alertaba, alertábamos, alertabais, alertaban) describes ongoing or habitual past actions of alerting.

Present

yoalerto
alertas
él/ella/ustedalerta
nosotrosalertamos
vosotrosalertáis
ellos/ellas/ustedesalertan

The present tense (alerto, alertas, alerta, alertamos, alertáis, alertan) describes current actions, habits, or general truths about alerting.

Future

yoalertaré
alertarás
él/ella/ustedalertará
nosotrosalertaremos
vosotrosalertaréis
ellos/ellas/ustedesalertarán

The future tense (alertaré, alertarás, alertará, alertaremos, alertaréis, alertarán) indicates actions that will happen.

Practice Conjugations

Test your knowledge with interactive exercises

Loading exercises...

Take alertar from tables to real Spanish

Conjugation tables are the start. Read 200+ illustrated and narrated Spanish stories to see 'alertar' in action across real sentences — and build the instinct that native speakers have.

Frequently Asked Questions

What does alertar mean in Spanish?

alertar means "to alert".

Is alertar a regular or irregular verb?

alertar is a regular -ar verb in Spanish.

How do you conjugate alertar in the present tense?

The present tense of alertar is: yo alerto, tú alertas, él/ella/usted alerta, nosotros alertamos, vosotros alertáis, ellos/ellas/ustedes alertan.

How do you conjugate alertar in the preterite (past tense)?

The preterite of alertar is: yo alerté, tú alertaste, él/ella/usted alertó, nosotros alertamos, vosotros alertasteis, ellos/ellas/ustedes alertaron.

Free printable reference

alertar conjugation cheat sheet

alertar conjugation cheat sheet — present, preterite, imperfect, future and conditional forms