concernir Affirmative Imperative Conjugation
concernir — to concern
The imperative of concernir is rarely used but follows the stem change: concierne (tú), concernid (vosotros), concierna (usted).
concernir Affirmative Imperative Forms
When to Use the Affirmative Imperative
This is very rare because 'concern' is usually a state, but it can be used reflexively to tell someone to worry about or take interest in something.
Notes on concernir in the Affirmative Imperative
The 'tú' form uses the stem change (concierne), while the 'vosotros' form is regular (concernid).
Example Sentences
Concierne a tus asuntos y deja los míos.
Concern yourself with your affairs and leave mine alone.
tú
Conciernan a los demás en este proyecto.
Involve/Concern others in this project.
ustedes
Common Mistakes
Mistake: Using 'concerne' for the tú command.
Correct: The correct form is concierne.
Why: The affirmative tú command usually matches the third-person singular of the present indicative, which has a stem change.
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Related Tenses
Present
yo: concierno
The present indicative features an e-to-ie stem change: concierno, conciernes, concierne, concernimos, concernís, conciernen.
Preterite
yo: concerní
The preterite of concernir is mostly regular, but uses a third-person stem change: concerní, concerniste, concernió, concernimos, concernisteis, concernieron.
Imperfect
yo: concernía
The imperfect of concernir is regular: concernía, concernías, concernía, concerníamos, concerníais, concernían.
Future
yo: concerniré
The future tense of concernir is regular: concerniré, concernirás, concernirá, concerniremos, concerniréis, concernirán.
Conditional
yo: concerniría
The conditional of concernir is regular: concerniría, concernirías, concerniría, concerniríamos, concerniríais, concernirían.
Present Subjunctive
yo: concierna
The present subjunctive of concernir features an e-to-ie stem change in most forms: concierna, conciernas, concierna, concernamos, concernáis, conciernan.
Imperfect Subjunctive
yo: concerniera
The imperfect subjunctive uses the 'concernie-' stem: concerniera, concernieras, concerniera, concerniéramos, concernierais, concernieran.
Negative Imperative
yo: no conciernas
The negative imperative uses the present subjunctive forms: no conciernas, no concierna, no concernamos, no concernáis, no conciernan.