I may prealter you may prealter he may prealter we may prealter you may prealter they may prealter
Forma com 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
Perfeito
I may have prealtered you may have prealtered he may have prealtered we may have prealtered you may have prealtered they may have prealtered
Perfeito com 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
Negação
Forma 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
Forma com 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
Perfeito
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
Perfeito com 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
Forma interrogativa
Forma simple
may I prealter? may you prealter? may he prealter? may we prealter? may you prealter? may they prealter?
Forma com 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?
Perfeito
may I have prealtered? may you have prealtered? may he have prealtered? may we have prealtered? may you have prealtered? may they have prealtered?
Perfeito com 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?
Forma interro-Negação
Forma 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?
Forma com 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?
Perfeito
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?
Perfeito com 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?