Spanish Verb Conjugation - concernir
Spanish Verb: concernir 
English Translation: to concern
Notes:
concernir is a completely irregular verb.
Observed irregularities:
DIPTONGACIÓN - Change in the stem vocale (diptongue): e > ie
Note:
Verbo Defectivo, sólo se pueden conjugar en terceras personas, infinitivo, gerundio y participio
Irregular forms are in
blue
Indicative
| inglés | yo | tú | él/ella/usted | nosotros/-as | vosotros/-as | ellos/ellas/ustedes | |
|---|---|---|---|---|---|---|---|
| Present | it concerns | concierne | conciernen | ||||
| Present Perfect | has concerned | ha concernido | han concernido | ||||
| Imperfect | concerned, used to concern | concernía | concernían | ||||
| Preterite | concerned | concernió | concernieron | ||||
| Past Perfect - Pluperfect | had concerned | había concernido | habían concernido | ||||
| Future | will concern | concernirá | concernirán | ||||
| Future Perfect | will have concerned | habrá concernido | habrán concernido | ||||
| Conditional | would concern | concerniría | concernirían | ||||
| Conditional Perfect | would have concerned | habría concernido | habrían concernido |
Subjunctive
| inglés | yo | tú | él/ella/usted | nosotros/-as | vosotros/-as | ellos/ellas/ustedes | |
|---|---|---|---|---|---|---|---|
| Present | it concerns | concierna | conciernan | ||||
| Imperfect | concerned, used to concern | concerniera OR concerniese | concernieran OR concerniesen | ||||
| Past Perfect - Pluperfect | had concerned | hubiera OR hubiese concernido | hubieran OR hubiesen concernido | ||||
| Future | will concern | concerniere | concernieren | ||||
| Future Perfect | will have concerned | hubiere concernido | hubieren concernido |
Imperative
| inglés | yo | tú | él/ella/usted | nosotros/-as | vosotros/-as | ellos/ellas/ustedes | |
|---|---|---|---|---|---|---|---|
| Affirmative Imperative | concern! | concierna | conciernan | ||||
| Negative Commands | don't concern! | no concierna | no conciernan |
Other Forms
| Infinitive | concernir | |
| Past Participle | concernido | |
| Present Participle | concerniendo |
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