Inklingo
A person holding a megaphone and pointing toward a distant storm cloud to warn others.

alertar

to alert

Complete conjugation tables and interactive practice exercises. This is a regular -ar verb.

The Spanish verb alertar means to alert.

Present tense:

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

Complete Conjugation Tables

Reference all tenses and moods

🔄 Conjugations

subjunctive

imperfect

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

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

Forms, examples & usage →

present

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

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

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imperative

negative

no alertes
vosotrosno alertéis
ustedesno alerten
nosotrosno alertemos
ustedno alerte

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

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affirmative

alerta
vosotrosalertad
ustedesalerten
nosotrosalertemos
ustedalerte

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

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indicative

conditional

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

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

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preterite

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

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

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imperfect

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

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

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present

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

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

Forms, examples & usage →

future

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

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

Forms, examples & usage →

Practice Conjugations

Test your knowledge with interactive exercises

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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.