advertir Negative Imperative Conjugation
advertir — to warn
The negative imperative always uses the present subjunctive forms: no adviertas, no advierta, etc.
advertir Negative Imperative Forms
When to Use the Negative Imperative
Use this to tell someone NOT to warn someone else or to tell them not to notice/mention something.
Notes on advertir in the Negative Imperative
Since it uses the present subjunctive, remember the e→ie change for 'tú' and the e→i change for 'nosotros'.
Example Sentences
No le adviertas todavía; es una sorpresa.
Don't warn him yet; it's a surprise.
tú
No adviertan a nadie sobre el plan secreto.
Don't warn anyone about the secret plan.
ustedes
No advertamos a la prensa todavía.
Let's not warn the press yet.
nosotros
Common Mistakes
Mistake: Using 'no advierte' for the negative command.
Correct: no adviertas
Why: Negative commands must use the subjunctive, not the indicative.
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Related Tenses
Present
yo: advierto
In the present, advertir has an e→ie stem change in all forms except nosotros and vosotros.
Preterite
yo: advertí
The preterite of advertir features a stem change (e→i) only in the third-person forms: advirtió and advirtieron.
Imperfect
yo: advertía
The imperfect of advertir is regular: advertía, advertías, advertía, advertíamos, advertíais, advertían.
Future
yo: advertiré
The future tense of advertir is entirely regular, using the full infinitive as the stem.
Conditional
yo: advertiría
The conditional of advertir is regular, formed by adding -ía endings to the full infinitive.
Present Subjunctive
yo: advierta
The present subjunctive of advertir changes e→ie in the boot and e→i in the nosotros/vosotros forms.
Imperfect Subjunctive
yo: advirtiera
The imperfect subjunctive uses the 'advirt-' stem for all forms: advirtiera, advirtieras, etc.
Affirmative Imperative
yo: advierte
The imperative uses 'advierte' for informal commands and 'advierta/n' for formal ones.