I could flap you could flap he could flap we could flap you could flap they could flap
Forma com V-ing
I could be flapping you could be flapping he could be flapping we could be flapping you could be flapping they could be flapping
Perfeito
I could have flapped you could have flapped he could have flapped we could have flapped you could have flapped they could have flapped
Perfeito com V-ing
I could have been flapping you could have been flapping he could have been flapping we could have been flapping you could have been flapping they could have been flapping
Negação
Forma simple
I could not flap you could not flap he could not flap we could not flap you could not flap they could not flap
Forma com V-ing
I could not be flapping you could not be flapping he could not be flapping we could not be flapping you could not be flapping they could not be flapping
Perfeito
I could not have flapped you could not have flapped he could not have flapped we could not have flapped you could not have flapped they could not have flapped
Perfeito com V-ing
I could not have been flapping you could not have been flapping he could not have been flapping we could not have been flapping you could not have been flapping they could not have been flapping
Forma interrogativa
Forma simple
could I flap? could you flap? could he flap? could we flap? could you flap? could they flap?
Forma com V-ing
could I be flapping? could you be flapping? could he be flapping? could we be flapping? could you be flapping? could they be flapping?
Perfeito
could I have flapped? could you have flapped? could he have flapped? could we have flapped? could you have flapped? could they have flapped?
Perfeito com V-ing
could I have been flapping? could you have been flapping? could he have been flapping? could we have been flapping? could you have been flapping? could they have been flapping?
Forma interro-Negação
Forma simple
could I not flap? could you not flap? could he not flap? could we not flap? could you not flap? could they not flap?
Forma com V-ing
could I not be flapping? could you not be flapping? could he not be flapping? could we not be flapping? could you not be flapping? could they not be flapping?
Perfeito
could I not have flapped? could you not have flapped? could he not have flapped? could we not have flapped? could you not have flapped? could they not have flapped?
Perfeito com V-ing
could I not have been flapping? could you not have been flapping? could he not have been flapping? could we not have been flapping? could you not have been flapping? could they not have been flapping?