alertar Present Subjunctive Conjugation
alertar — to alert
The present subjunctive (alerte, alertes, alertemos, alertéis, alerten) is used after expressions of doubt, desire, emotion, or uncertainty.
alertar Present Subjunctive Forms
When to Use the Present Subjunctive
Use this when you want to express a wish, doubt, emotion, or a subjective reaction about someone alerting someone else. For example, 'I hope they alert us' or 'It's unlikely he'll alert the authorities'.
Notes on alertar in the Present Subjunctive
Alertar is regular in the present subjunctive, following the pattern for -ar verbs.
Example Sentences
Espero que alertes a tu familia del peligro.
I hope you alert your family to the danger.
tú
Dudo que él alerte a la policía.
I doubt he will alert the police.
él/ella/usted
Queremos que nos alerten si hay problemas.
We want them to alert us if there are problems.
ellos/ellas/ustedes
Es importante que alertemos a tiempo.
It's important that we alert on time.
nosotros
Common Mistakes
Mistake: Using the present indicative instead of the present subjunctive.
Correct: After expressions like 'espero que', 'dudo que', 'quiero que', use the subjunctive form 'alerte(s)', not the indicative 'alerta(s)'.
Why: These trigger phrases express subjectivity, doubt, or desire, requiring the subjunctive mood.
Mistake: Forgetting the subjunctive for impersonal expressions.
Correct: Use 'Es necesario que alertemos', not 'Es necesario que alertamos'.
Why: Impersonal expressions followed by 'que' usually trigger the subjunctive.
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Related Tenses
Present
yo: alerto
The present tense (alerto, alertas, alerta, alertamos, alertáis, alertan) describes current actions, habits, or general truths about alerting.
Preterite
yo: alerté
The preterite of 'alertar' is regular: alerté, alertaste, alertó, alertamos, alertasteis, alertaron.
Imperfect
yo: alertaba
The imperfect of 'alertar' (alertaba, alertabas, alertaba, alertábamos, alertabais, alertaban) describes ongoing or habitual past actions of alerting.
Future
yo: alertaré
The future tense (alertaré, alertarás, alertará, alertaremos, alertaréis, alertarán) indicates actions that will happen.
Conditional
yo: alertaría
The conditional of 'alertar' (alertaría, alertarías, alertaría, alertaríamos, alertaríais, alertarían) is used for hypotheticals, polite requests, and future-in-the-past.
Imperfect Subjunctive
yo: alertara
The imperfect subjunctive (alertara/alertase) is used for hypothetical past situations, politeness, or wishes.
Affirmative Imperative
yo: alerta
Use 'alerta' (tú), 'alerte' (usted), 'alertemos' (nosotros), 'alertad' (vosotros), 'alerten' (ustedes) for direct commands.
Negative Imperative
yo: no alertes
Use 'no alertes' (tú), 'no alerte' (usted), 'no alertemos' (nosotros), 'no alertéis' (vosotros), 'no alerten' (ustedes) for negative commands.