I could replace you could replace she could replace we could replace you could replace they could replace
Forma com V-ing
I could be replacing you could be replacing she could be replacing we could be replacing you could be replacing they could be replacing
Perfeito
I could have replaced you could have replaced she could have replaced we could have replaced you could have replaced they could have replaced
Perfeito com V-ing
I could have been replacing you could have been replacing she could have been replacing we could have been replacing you could have been replacing they could have been replacing
Negação
Forma simple
I could not replace you could not replace she could not replace we could not replace you could not replace they could not replace
Forma com V-ing
I could not be replacing you could not be replacing she could not be replacing we could not be replacing you could not be replacing they could not be replacing
Perfeito
I could not have replaced you could not have replaced she could not have replaced we could not have replaced you could not have replaced they could not have replaced
Perfeito com V-ing
I could not have been replacing you could not have been replacing she could not have been replacing we could not have been replacing you could not have been replacing they could not have been replacing
Forma interrogativa
Forma simple
could I replace? could you replace? could she replace? could we replace? could you replace? could they replace?
Forma com V-ing
could I be replacing? could you be replacing? could she be replacing? could we be replacing? could you be replacing? could they be replacing?
Perfeito
could I have replaced? could you have replaced? could she have replaced? could we have replaced? could you have replaced? could they have replaced?
Perfeito com V-ing
could I have been replacing? could you have been replacing? could she have been replacing? could we have been replacing? could you have been replacing? could they have been replacing?
Forma interro-Negação
Forma simple
could I not replace? could you not replace? could she not replace? could we not replace? could you not replace? could they not replace?
Forma com V-ing
could I not be replacing? could you not be replacing? could she not be replacing? could we not be replacing? could you not be replacing? could they not be replacing?
Perfeito
could I not have replaced? could you not have replaced? could she not have replaced? could we not have replaced? could you not have replaced? could they not have replaced?
Perfeito com V-ing
could I not have been replacing? could you not have been replacing? could she not have been replacing? could we not have been replacing? could you not have been replacing? could they not have been replacing?