I could bite you could bite he could bite we could bite you could bite they could bite
Forma com V-ing
I could be biting you could be biting he could be biting we could be biting you could be biting they could be biting
Perfeito
I could have bitten you could have bitten he could have bitten we could have bitten you could have bitten they could have bitten
Perfeito com V-ing
I could have been biting you could have been biting he could have been biting we could have been biting you could have been biting they could have been biting
Negação
Forma simple
I could not bite you could not bite he could not bite we could not bite you could not bite they could not bite
Forma com V-ing
I could not be biting you could not be biting he could not be biting we could not be biting you could not be biting they could not be biting
Perfeito
I could not have bitten you could not have bitten he could not have bitten we could not have bitten you could not have bitten they could not have bitten
Perfeito com V-ing
I could not have been biting you could not have been biting he could not have been biting we could not have been biting you could not have been biting they could not have been biting
Forma interrogativa
Forma simple
could I bite? could you bite? could he bite? could we bite? could you bite? could they bite?
Forma com V-ing
could I be biting? could you be biting? could he be biting? could we be biting? could you be biting? could they be biting?
Perfeito
could I have bitten? could you have bitten? could he have bitten? could we have bitten? could you have bitten? could they have bitten?
Perfeito com V-ing
could I have been biting? could you have been biting? could he have been biting? could we have been biting? could you have been biting? could they have been biting?
Forma interro-Negação
Forma simple
could I not bite? could you not bite? could he not bite? could we not bite? could you not bite? could they not bite?
Forma com V-ing
could I not be biting? could you not be biting? could he not be biting? could we not be biting? could you not be biting? could they not be biting?
Perfeito
could I not have bitten? could you not have bitten? could he not have bitten? could we not have bitten? could you not have bitten? could they not have bitten?
Perfeito com V-ing
could I not have been biting? could you not have been biting? could he not have been biting? could we not have been biting? could you not have been biting? could they not have been biting?