I could defend you could defend he could defend we could defend you could defend they could defend
Forma com V-ing
I could be defending you could be defending he could be defending we could be defending you could be defending they could be defending
Perfeito
I could have defended you could have defended he could have defended we could have defended you could have defended they could have defended
Perfeito com V-ing
I could have been defending you could have been defending he could have been defending we could have been defending you could have been defending they could have been defending
Negação
Forma simple
I could not defend you could not defend he could not defend we could not defend you could not defend they could not defend
Forma com V-ing
I could not be defending you could not be defending he could not be defending we could not be defending you could not be defending they could not be defending
Perfeito
I could not have defended you could not have defended he could not have defended we could not have defended you could not have defended they could not have defended
Perfeito com V-ing
I could not have been defending you could not have been defending he could not have been defending we could not have been defending you could not have been defending they could not have been defending
Forma interrogativa
Forma simple
could I defend? could you defend? could he defend? could we defend? could you defend? could they defend?
Forma com V-ing
could I be defending? could you be defending? could he be defending? could we be defending? could you be defending? could they be defending?
Perfeito
could I have defended? could you have defended? could he have defended? could we have defended? could you have defended? could they have defended?
Perfeito com V-ing
could I have been defending? could you have been defending? could he have been defending? could we have been defending? could you have been defending? could they have been defending?
Forma interro-Negação
Forma simple
could I not defend? could you not defend? could he not defend? could we not defend? could you not defend? could they not defend?
Forma com V-ing
could I not be defending? could you not be defending? could he not be defending? could we not be defending? could you not be defending? could they not be defending?
Perfeito
could I not have defended? could you not have defended? could he not have defended? could we not have defended? could you not have defended? could they not have defended?
Perfeito com V-ing
could I not have been defending? could you not have been defending? could he not have been defending? could we not have been defending? could you not have been defending? could they not have been defending?