I could precede you could precede he could precede we could precede you could precede they could precede
Forma com V-ing
I could be preceding you could be preceding he could be preceding we could be preceding you could be preceding they could be preceding
Perfeito
I could have preceded you could have preceded he could have preceded we could have preceded you could have preceded they could have preceded
Perfeito com V-ing
I could have been preceding you could have been preceding he could have been preceding we could have been preceding you could have been preceding they could have been preceding
Negação
Forma simple
I could not precede you could not precede he could not precede we could not precede you could not precede they could not precede
Forma com V-ing
I could not be preceding you could not be preceding he could not be preceding we could not be preceding you could not be preceding they could not be preceding
Perfeito
I could not have preceded you could not have preceded he could not have preceded we could not have preceded you could not have preceded they could not have preceded
Perfeito com V-ing
I could not have been preceding you could not have been preceding he could not have been preceding we could not have been preceding you could not have been preceding they could not have been preceding
Forma interrogativa
Forma simple
could I precede? could you precede? could he precede? could we precede? could you precede? could they precede?
Forma com V-ing
could I be preceding? could you be preceding? could he be preceding? could we be preceding? could you be preceding? could they be preceding?
Perfeito
could I have preceded? could you have preceded? could he have preceded? could we have preceded? could you have preceded? could they have preceded?
Perfeito com V-ing
could I have been preceding? could you have been preceding? could he have been preceding? could we have been preceding? could you have been preceding? could they have been preceding?
Forma interro-Negação
Forma simple
could I not precede? could you not precede? could he not precede? could we not precede? could you not precede? could they not precede?
Forma com V-ing
could I not be preceding? could you not be preceding? could he not be preceding? could we not be preceding? could you not be preceding? could they not be preceding?
Perfeito
could I not have preceded? could you not have preceded? could he not have preceded? could we not have preceded? could you not have preceded? could they not have preceded?
Perfeito com V-ing
could I not have been preceding? could you not have been preceding? could he not have been preceding? could we not have been preceding? could you not have been preceding? could they not have been preceding?