I could cross you could cross he could cross we could cross you could cross they could cross
Forma com V-ing
I could be crossing you could be crossing he could be crossing we could be crossing you could be crossing they could be crossing
Perfeito
I could have crossed you could have crossed he could have crossed we could have crossed you could have crossed they could have crossed
Perfeito com V-ing
I could have been crossing you could have been crossing he could have been crossing we could have been crossing you could have been crossing they could have been crossing
Negação
Forma simple
I could not cross you could not cross he could not cross we could not cross you could not cross they could not cross
Forma com V-ing
I could not be crossing you could not be crossing he could not be crossing we could not be crossing you could not be crossing they could not be crossing
Perfeito
I could not have crossed you could not have crossed he could not have crossed we could not have crossed you could not have crossed they could not have crossed
Perfeito com V-ing
I could not have been crossing you could not have been crossing he could not have been crossing we could not have been crossing you could not have been crossing they could not have been crossing
Forma interrogativa
Forma simple
could I cross? could you cross? could he cross? could we cross? could you cross? could they cross?
Forma com V-ing
could I be crossing? could you be crossing? could he be crossing? could we be crossing? could you be crossing? could they be crossing?
Perfeito
could I have crossed? could you have crossed? could he have crossed? could we have crossed? could you have crossed? could they have crossed?
Perfeito com V-ing
could I have been crossing? could you have been crossing? could he have been crossing? could we have been crossing? could you have been crossing? could they have been crossing?
Forma interro-Negação
Forma simple
could I not cross? could you not cross? could he not cross? could we not cross? could you not cross? could they not cross?
Forma com V-ing
could I not be crossing? could you not be crossing? could he not be crossing? could we not be crossing? could you not be crossing? could they not be crossing?
Perfeito
could I not have crossed? could you not have crossed? could he not have crossed? could we not have crossed? could you not have crossed? could they not have crossed?
Perfeito com V-ing
could I not have been crossing? could you not have been crossing? could he not have been crossing? could we not have been crossing? could you not have been crossing? could they not have been crossing?