I could shack you could shack he could shack we could shack you could shack they could shack
Forma com V-ing
I could be shacking you could be shacking he could be shacking we could be shacking you could be shacking they could be shacking
Perfeito
I could have shacked you could have shacked he could have shacked we could have shacked you could have shacked they could have shacked
Perfeito com V-ing
I could have been shacking you could have been shacking he could have been shacking we could have been shacking you could have been shacking they could have been shacking
Negação
Forma simple
I could not shack you could not shack he could not shack we could not shack you could not shack they could not shack
Forma com V-ing
I could not be shacking you could not be shacking he could not be shacking we could not be shacking you could not be shacking they could not be shacking
Perfeito
I could not have shacked you could not have shacked he could not have shacked we could not have shacked you could not have shacked they could not have shacked
Perfeito com V-ing
I could not have been shacking you could not have been shacking he could not have been shacking we could not have been shacking you could not have been shacking they could not have been shacking
Forma interrogativa
Forma simple
could I shack? could you shack? could he shack? could we shack? could you shack? could they shack?
Forma com V-ing
could I be shacking? could you be shacking? could he be shacking? could we be shacking? could you be shacking? could they be shacking?
Perfeito
could I have shacked? could you have shacked? could he have shacked? could we have shacked? could you have shacked? could they have shacked?
Perfeito com V-ing
could I have been shacking? could you have been shacking? could he have been shacking? could we have been shacking? could you have been shacking? could they have been shacking?
Forma interro-Negação
Forma simple
could I not shack? could you not shack? could he not shack? could we not shack? could you not shack? could they not shack?
Forma com V-ing
could I not be shacking? could you not be shacking? could he not be shacking? could we not be shacking? could you not be shacking? could they not be shacking?
Perfeito
could I not have shacked? could you not have shacked? could he not have shacked? could we not have shacked? could you not have shacked? could they not have shacked?
Perfeito com V-ing
could I not have been shacking? could you not have been shacking? could he not have been shacking? could we not have been shacking? could you not have been shacking? could they not have been shacking?