conjugation rules and endings for the first group verbs.
However, although the terminations are perfectly regular, stem can be irregular and have numerous variations.
Pénétrer is conjugated the same way that verbs that end in :
-étrer. For sound purpose, verbs ending in
-é-consonne(s)-er except verbs in
-éer, ie verbs in:
-éber, -ébrer, -écer, -écher, -écrer, -éder, -éfler, -éger, -égner, -égrer, -éguer, -éjer, -éler, -émer, -éner, -éper, -équer, -érer, -éser, -éter, -étrer, -éver, et -évrer...
transform the
« é » in
« è » before silent endings.
Example:
« sécher » :
« il sèche »,
« nous séchons ». For sound purpose again, verbs ending in
-éger add the letter
« e » after the stem letter
« g » with endings in
« -a » or
« -o ».
Pénétrer verb is conjugated in female form and in reflexive form. Be careful, the past participle of compound tenses must agree with the subject.