I may prealter you may prealter he may prealter we may prealter you may prealter they may prealter
Forme en V-ing
I may be prealtering you may be prealtering he may be prealtering we may be prealtering you may be prealtering they may be prealtering
Perfect
I may have prealtered you may have prealtered he may have prealtered we may have prealtered you may have prealtered they may have prealtered
Perfect en V-ing
I may have been prealtering you may have been prealtering he may have been prealtering we may have been prealtering you may have been prealtering they may have been prealtering
Négation
Forme simple
I may not prealter you may not prealter he may not prealter we may not prealter you may not prealter they may not prealter
Forme en V-ing
I may not be prealtering you may not be prealtering he may not be prealtering we may not be prealtering you may not be prealtering they may not be prealtering
Perfect
I may not have prealtered you may not have prealtered he may not have prealtered we may not have prealtered you may not have prealtered they may not have prealtered
Perfect en V-ing
I may not have been prealtering you may not have been prealtering he may not have been prealtering we may not have been prealtering you may not have been prealtering they may not have been prealtering
Forme interrogative
Forme simple
may I prealter? may you prealter? may he prealter? may we prealter? may you prealter? may they prealter?
Forme en V-ing
may I be prealtering? may you be prealtering? may he be prealtering? may we be prealtering? may you be prealtering? may they be prealtering?
Perfect
may I have prealtered? may you have prealtered? may he have prealtered? may we have prealtered? may you have prealtered? may they have prealtered?
Perfect en V-ing
may I have been prealtering? may you have been prealtering? may he have been prealtering? may we have been prealtering? may you have been prealtering? may they have been prealtering?
Forme interro-négative
Forme simple
may I not prealter? may you not prealter? may he not prealter? may we not prealter? may you not prealter? may they not prealter?
Forme en V-ing
may I not be prealtering? may you not be prealtering? may he not be prealtering? may we not be prealtering? may you not be prealtering? may they not be prealtering?
Perfect
may I not have prealtered? may you not have prealtered? may he not have prealtered? may we not have prealtered? may you not have prealtered? may they not have prealtered?
Perfect en V-ing
may I not have been prealtering? may you not have been prealtering? may he not have been prealtering? may we not have been prealtering? may you not have been prealtering? may they not have been prealtering?