I could stretch you could stretch she could stretch we could stretch you could stretch they could stretch
Forma com V-ing
I could be stretching you could be stretching she could be stretching we could be stretching you could be stretching they could be stretching
Perfeito
I could have stretched you could have stretched she could have stretched we could have stretched you could have stretched they could have stretched
Perfeito com V-ing
I could have been stretching you could have been stretching she could have been stretching we could have been stretching you could have been stretching they could have been stretching
Negação
Forma simple
I could not stretch you could not stretch she could not stretch we could not stretch you could not stretch they could not stretch
Forma com V-ing
I could not be stretching you could not be stretching she could not be stretching we could not be stretching you could not be stretching they could not be stretching
Perfeito
I could not have stretched you could not have stretched she could not have stretched we could not have stretched you could not have stretched they could not have stretched
Perfeito com V-ing
I could not have been stretching you could not have been stretching she could not have been stretching we could not have been stretching you could not have been stretching they could not have been stretching
Forma interrogativa
Forma simple
could I stretch? could you stretch? could she stretch? could we stretch? could you stretch? could they stretch?
Forma com V-ing
could I be stretching? could you be stretching? could she be stretching? could we be stretching? could you be stretching? could they be stretching?
Perfeito
could I have stretched? could you have stretched? could she have stretched? could we have stretched? could you have stretched? could they have stretched?
Perfeito com V-ing
could I have been stretching? could you have been stretching? could she have been stretching? could we have been stretching? could you have been stretching? could they have been stretching?
Forma interro-Negação
Forma simple
could I not stretch? could you not stretch? could she not stretch? could we not stretch? could you not stretch? could they not stretch?
Forma com V-ing
could I not be stretching? could you not be stretching? could she not be stretching? could we not be stretching? could you not be stretching? could they not be stretching?
Perfeito
could I not have stretched? could you not have stretched? could she not have stretched? could we not have stretched? could you not have stretched? could they not have stretched?
Perfeito com V-ing
could I not have been stretching? could you not have been stretching? could she not have been stretching? could we not have been stretching? could you not have been stretching? could they not have been stretching?