concernir Present Conjugation
concernir — to concern
The present indicative features an e-to-ie stem change: concierno, conciernes, concierne, concernimos, concernís, conciernen.
concernir Present Forms
When to Use the Present
Use the present tense to describe what currently affects, relates to, or is the business of a particular person or group.
Notes on concernir in the Present
This verb undergoes an e > ie stem change in all forms except nosotros and vosotros.
Example Sentences
Esto no te concierne a ti.
This doesn't concern you.
él/ella/usted
Esas leyes conciernen a los ciudadanos extranjeros.
Those laws concern foreign citizens.
ellos/ellas/ustedes
Nos concernimos por la seguridad del edificio.
We concern ourselves with the building's security.
nosotros
Common Mistakes
Mistake: Saying 'concerne' instead of 'concierne'.
Correct: The correct form is concierne.
Why: Concernir is a stem-changing verb where the stressed 'e' becomes 'ie'.
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Related Tenses
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.
Affirmative Imperative
yo: concierne
The imperative of concernir is rarely used but follows the stem change: concierne (tú), concernid (vosotros), concierna (usted).
Negative Imperative
yo: no conciernas
The negative imperative uses the present subjunctive forms: no conciernas, no concierna, no concernamos, no concernáis, no conciernan.