French Verb Conjugations
| Present | Imperfect | Future | Conditional | Subjunctive | Imperfect subj. | |||
| j’ | interviens | intervenais | interviendrai | interviendrais | intervienne | intervinsse | ||
| tu | interviens | intervenais | interviendras | interviendrais | interviennes | intervinsses | ||
| il | intervient | intervenait | interviendra | interviendrait | intervienne | intervînt | ||
| nous | intervenons | intervenions | interviendrons | interviendrions | intervenions | intervinssions | ||
| vous | intervenez | interveniez | interviendrez | interviendriez | interveniez | intervinssiez | ||
| ils | interviennent | intervenaient | interviendront | interviendraient | interviennent | intervinssent | ||
| Passé composé | Past perfect | Future perfect | Past conditional | Past subjunctive | Pluperfect subj. | |||
| je / j’ | suis intervenu | étais intervenu | serai intervenu | serais intervenu | sois intervenu | fusse intervenu | ||
| tu | es intervenu | étais intervenu | seras intervenu | serais intervenu | sois intervenu | fusses intervenu | ||
| il | est intervenu | était intervenu | sera intervenu | serait intervenu | soit intervenu | fût intervenu | ||
| nous | sommes intervenus | étions intervenus | serons intervenus | serions intervenus | soyons intervenus | fussions intervenus | ||
| vous | êtes intervenu(s) | étiez intervenu(s) | serez intervenu(s) | seriez intervenu(s) | soyez intervenu(s) | fussiez intervenu(s) | ||
| ils | sont intervenus | étaient intervenus | seront intervenus | seraient intervenus | soient intervenus | fussent intervenus | ||
| Passé simple | Past anterior | Imperative | Participles | |||||
| j’ / je | intervins | fus intervenu | (tu) | interviens | Present | intervenant | ||
| tu | intervins | fus intervenu | (nous) | intervenons | Past | intervenu | ||
| il | intervint | fut intervenu | (vous) | intervenez | Perfect | étant intervenu | ||
| nous | intervînmes | fûmes intervenus | Past imperative | |||||
| vous | intervîntes | fûtes intervenu(s) | (tu) | sois intervenu | Past infinitive | |||
| ils | intervinrent | furent intervenus | (nous) | soyons intervenus | être intervenu | |||
| (vous) | soyez intervenu(s) | |||||||
Intervenir is an irregular -ir verb.


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