I could weigh you could weigh she could weigh we could weigh you could weigh they could weigh
Forma com V-ing
I could be weighing you could be weighing she could be weighing we could be weighing you could be weighing they could be weighing
Perfeito
I could have weighed you could have weighed she could have weighed we could have weighed you could have weighed they could have weighed
Perfeito com V-ing
I could have been weighing you could have been weighing she could have been weighing we could have been weighing you could have been weighing they could have been weighing
Negação
Forma simple
I could not weigh you could not weigh she could not weigh we could not weigh you could not weigh they could not weigh
Forma com V-ing
I could not be weighing you could not be weighing she could not be weighing we could not be weighing you could not be weighing they could not be weighing
Perfeito
I could not have weighed you could not have weighed she could not have weighed we could not have weighed you could not have weighed they could not have weighed
Perfeito com V-ing
I could not have been weighing you could not have been weighing she could not have been weighing we could not have been weighing you could not have been weighing they could not have been weighing
Forma interrogativa
Forma simple
could I weigh? could you weigh? could she weigh? could we weigh? could you weigh? could they weigh?
Forma com V-ing
could I be weighing? could you be weighing? could she be weighing? could we be weighing? could you be weighing? could they be weighing?
Perfeito
could I have weighed? could you have weighed? could she have weighed? could we have weighed? could you have weighed? could they have weighed?
Perfeito com V-ing
could I have been weighing? could you have been weighing? could she have been weighing? could we have been weighing? could you have been weighing? could they have been weighing?
Forma interro-Negação
Forma simple
could I not weigh? could you not weigh? could she not weigh? could we not weigh? could you not weigh? could they not weigh?
Forma com V-ing
could I not be weighing? could you not be weighing? could she not be weighing? could we not be weighing? could you not be weighing? could they not be weighing?
Perfeito
could I not have weighed? could you not have weighed? could she not have weighed? could we not have weighed? could you not have weighed? could they not have weighed?
Perfeito com V-ing
could I not have been weighing? could you not have been weighing? could she not have been weighing? could we not have been weighing? could you not have been weighing? could they not have been weighing?