Prolonger is a french first group verb. So it follow the regular conjugation pattern of the first group like:
aimer.
Follow this link to see all the endings of the conjugation of the first group verbs :
conjugation rules and endings for the first group verbs.
However, although the terminations are perfectly regular, stem can be irregular and have numerous variations.
Prolonger is conjugated the same way that verbs that end in :
-ger.
For sound purpose, verbs ending in
-ger add the letter
« e » after the stem letter
« g » with endings in
« -a » or
« -o ». Example:
« nous mangeons »,
« il mangeait ». For sound purpose again, verbes ending in
-éger turn the
« é » in
« è » before silent endings.
Prolonger verb is conjugated in female form and in reflexive form. Be careful, the past participle of compound tenses must agree with the subject.
Prolonger verb is conjugated in interrogative form. For sound reasons, an euphonious
« t » is added to the pronoun of the third person:
« il »,
« elle »,
« on »,
« ils »,
« elles » except when the verb ends with
« t » or
« d »:
« prolonge-t-elle ? »,
« prolongea-t-elle ? »,
« prolongera-t-elle ? »,
« a-t-elle prolongé ? »,
« aura-t-elle prolongé ? ».
Always in interrogative form, and always for sound reasons, an accent appears in first person present indicative tense when the verb ends with
« e ». An euphonious
« e » is replaced by
« é »:
« prolongé-je ? ».
Finally, the interrogative form does not exist in subjunctive and imperative.
