I could snap you could snap he could snap we could snap you could snap they could snap
Forma com V-ing
I could be snapping you could be snapping he could be snapping we could be snapping you could be snapping they could be snapping
Perfeito
I could have snapped you could have snapped he could have snapped we could have snapped you could have snapped they could have snapped
Perfeito com V-ing
I could have been snapping you could have been snapping he could have been snapping we could have been snapping you could have been snapping they could have been snapping
Negação
Forma simple
I could not snap you could not snap he could not snap we could not snap you could not snap they could not snap
Forma com V-ing
I could not be snapping you could not be snapping he could not be snapping we could not be snapping you could not be snapping they could not be snapping
Perfeito
I could not have snapped you could not have snapped he could not have snapped we could not have snapped you could not have snapped they could not have snapped
Perfeito com V-ing
I could not have been snapping you could not have been snapping he could not have been snapping we could not have been snapping you could not have been snapping they could not have been snapping
Forma interrogativa
Forma simple
could I snap? could you snap? could he snap? could we snap? could you snap? could they snap?
Forma com V-ing
could I be snapping? could you be snapping? could he be snapping? could we be snapping? could you be snapping? could they be snapping?
Perfeito
could I have snapped? could you have snapped? could he have snapped? could we have snapped? could you have snapped? could they have snapped?
Perfeito com V-ing
could I have been snapping? could you have been snapping? could he have been snapping? could we have been snapping? could you have been snapping? could they have been snapping?
Forma interro-Negação
Forma simple
could I not snap? could you not snap? could he not snap? could we not snap? could you not snap? could they not snap?
Forma com V-ing
could I not be snapping? could you not be snapping? could he not be snapping? could we not be snapping? could you not be snapping? could they not be snapping?
Perfeito
could I not have snapped? could you not have snapped? could he not have snapped? could we not have snapped? could you not have snapped? could they not have snapped?
Perfeito com V-ing
could I not have been snapping? could you not have been snapping? could he not have been snapping? could we not have been snapping? could you not have been snapping? could they not have been snapping?