Conjugação do verbo inglês
CAN PREALTER

Verbo regular: prealter - prealtered - prealtered

Afirmação

Forma simple	Forma com V-ing
I can prealter you can prealter he can prealter we can prealter you can prealter they can prealter	I can be prealtering you can be prealtering he can be prealtering we can be prealtering you can be prealtering they can be prealtering
Perfeito	Perfeito com V-ing
I can have prealtered you can have prealtered he can have prealtered we can have prealtered you can have prealtered they can have prealtered	I can have been prealtering you can have been prealtering he can have been prealtering we can have been prealtering you can have been prealtering they can have been prealtering

Negação

Forma simple	Forma com V-ing
I cannot prealter you cannot prealter he cannot prealter we cannot prealter you cannot prealter they cannot prealter	I cannot be prealtering you cannot be prealtering he cannot be prealtering we cannot be prealtering you cannot be prealtering they cannot be prealtering
Perfeito	Perfeito com V-ing
I cannot have prealtered you cannot have prealtered he cannot have prealtered we cannot have prealtered you cannot have prealtered they cannot have prealtered	I cannot have been prealtering you cannot have been prealtering he cannot have been prealtering we cannot have been prealtering you cannot have been prealtering they cannot have been prealtering

Forma interrogativa

Forma simple	Forma com V-ing
can I prealter? can you prealter? can he prealter? can we prealter? can you prealter? can they prealter?	can I be prealtering? can you be prealtering? can he be prealtering? can we be prealtering? can you be prealtering? can they be prealtering?
Perfeito	Perfeito com V-ing
can I have prealtered? can you have prealtered? can he have prealtered? can we have prealtered? can you have prealtered? can they have prealtered?	can I have been prealtering? can you have been prealtering? can he have been prealtering? can we have been prealtering? can you have been prealtering? can they have been prealtering?

Forma interro-Negação

Forma simple	Forma com V-ing
can I not prealter? can you not prealter? can he not prealter? can we not prealter? can you not prealter? can they not prealter?	can I not be prealtering? can you not be prealtering? can he not be prealtering? can we not be prealtering? can you not be prealtering? can they not be prealtering?
Perfeito	Perfeito com V-ing
can I not have prealtered? can you not have prealtered? can he not have prealtered? can we not have prealtered? can you not have prealtered? can they not have prealtered?	can I not have been prealtering? can you not have been prealtering? can he not have been prealtering? can we not have been prealtering? can you not have been prealtering? can they not have been prealtering?