I could bite you could bite he could bite we could bite you could bite they could bite
Forma con 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
Perfecto
I could have bitten you could have bitten he could have bitten we could have bitten you could have bitten they could have bitten
Perfecto con 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
Negación
Forma simple
I couldn't bite you couldn't bite he couldn't bite we couldn't bite you couldn't bite they couldn't bite
Forma con V-ing
I couldn't be biting you couldn't be biting he couldn't be biting we couldn't be biting you couldn't be biting they couldn't be biting
Perfecto
I couldn't have bitten you couldn't have bitten he couldn't have bitten we couldn't have bitten you couldn't have bitten they couldn't have bitten
Perfecto con V-ing
I couldn't have been biting you couldn't have been biting he couldn't have been biting we couldn't have been biting you couldn't have been biting they couldn't 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 con 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?
Perfecto
could I have bitten? could you have bitten? could he have bitten? could we have bitten? could you have bitten? could they have bitten?
Perfecto con 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-negativa
Forma simple
couldn't I bite? couldn't you bite? couldn't he bite? couldn't we bite? couldn't you bite? couldn't they bite?
Forma con V-ing
couldn't I be biting? couldn't you be biting? couldn't he be biting? couldn't we be biting? couldn't you be biting? couldn't they be biting?
Perfecto
couldn't I have bitten? couldn't you have bitten? couldn't he have bitten? couldn't we have bitten? couldn't you have bitten? couldn't they have bitten?
Perfecto con V-ing
couldn't I have been biting? couldn't you have been biting? couldn't he have been biting? couldn't we have been biting? couldn't you have been biting? couldn't they have been biting?