I can compute you can compute he can compute we can compute you can compute they can compute
Forma com V-ing
I can be computing you can be computing he can be computing we can be computing you can be computing they can be computing
Perfeito
I can have computed you can have computed he can have computed we can have computed you can have computed they can have computed
Perfeito com V-ing
I can have been computing you can have been computing he can have been computing we can have been computing you can have been computing they can have been computing
Negação
Forma simple
I cannot compute you cannot compute he cannot compute we cannot compute you cannot compute they cannot compute
Forma com V-ing
I cannot be computing you cannot be computing he cannot be computing we cannot be computing you cannot be computing they cannot be computing
Perfeito
I cannot have computed you cannot have computed he cannot have computed we cannot have computed you cannot have computed they cannot have computed
Perfeito com V-ing
I cannot have been computing you cannot have been computing he cannot have been computing we cannot have been computing you cannot have been computing they cannot have been computing
Forma interrogativa
Forma simple
can I compute? can you compute? can he compute? can we compute? can you compute? can they compute?
Forma com V-ing
can I be computing? can you be computing? can he be computing? can we be computing? can you be computing? can they be computing?
Perfeito
can I have computed? can you have computed? can he have computed? can we have computed? can you have computed? can they have computed?
Perfeito com V-ing
can I have been computing? can you have been computing? can he have been computing? can we have been computing? can you have been computing? can they have been computing?
Forma interro-Negação
Forma simple
can I not compute? can you not compute? can he not compute? can we not compute? can you not compute? can they not compute?
Forma com V-ing
can I not be computing? can you not be computing? can he not be computing? can we not be computing? can you not be computing? can they not be computing?
Perfeito
can I not have computed? can you not have computed? can he not have computed? can we not have computed? can you not have computed? can they not have computed?
Perfeito com V-ing
can I not have been computing? can you not have been computing? can he not have been computing? can we not have been computing? can you not have been computing? can they not have been computing?