I could chap you could chap he could chap we could chap you could chap they could chap
Forma com V-ing
I could be chapping you could be chapping he could be chapping we could be chapping you could be chapping they could be chapping
Perfeito
I could have chapped you could have chapped he could have chapped we could have chapped you could have chapped they could have chapped
Perfeito com V-ing
I could have been chapping you could have been chapping he could have been chapping we could have been chapping you could have been chapping they could have been chapping
Negação
Forma simple
I could not chap you could not chap he could not chap we could not chap you could not chap they could not chap
Forma com V-ing
I could not be chapping you could not be chapping he could not be chapping we could not be chapping you could not be chapping they could not be chapping
Perfeito
I could not have chapped you could not have chapped he could not have chapped we could not have chapped you could not have chapped they could not have chapped
Perfeito com V-ing
I could not have been chapping you could not have been chapping he could not have been chapping we could not have been chapping you could not have been chapping they could not have been chapping
Forma interrogativa
Forma simple
could I chap? could you chap? could he chap? could we chap? could you chap? could they chap?
Forma com V-ing
could I be chapping? could you be chapping? could he be chapping? could we be chapping? could you be chapping? could they be chapping?
Perfeito
could I have chapped? could you have chapped? could he have chapped? could we have chapped? could you have chapped? could they have chapped?
Perfeito com V-ing
could I have been chapping? could you have been chapping? could he have been chapping? could we have been chapping? could you have been chapping? could they have been chapping?
Forma interro-Negação
Forma simple
could I not chap? could you not chap? could he not chap? could we not chap? could you not chap? could they not chap?
Forma com V-ing
could I not be chapping? could you not be chapping? could he not be chapping? could we not be chapping? could you not be chapping? could they not be chapping?
Perfeito
could I not have chapped? could you not have chapped? could he not have chapped? could we not have chapped? could you not have chapped? could they not have chapped?
Perfeito com V-ing
could I not have been chapping? could you not have been chapping? could he not have been chapping? could we not have been chapping? could you not have been chapping? could they not have been chapping?