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