I could finish you could finish she could finish we could finish you could finish they could finish
Forma con V-ing
I could be finishing you could be finishing she could be finishing we could be finishing you could be finishing they could be finishing
Perfecto
I could have finished you could have finished she could have finished we could have finished you could have finished they could have finished
Perfecto con V-ing
I could have been finishing you could have been finishing she could have been finishing we could have been finishing you could have been finishing they could have been finishing
Negación
Forma simple
I could not finish you could not finish she could not finish we could not finish you could not finish they could not finish
Forma con V-ing
I could not be finishing you could not be finishing she could not be finishing we could not be finishing you could not be finishing they could not be finishing
Perfecto
I could not have finished you could not have finished she could not have finished we could not have finished you could not have finished they could not have finished
Perfecto con V-ing
I could not have been finishing you could not have been finishing she could not have been finishing we could not have been finishing you could not have been finishing they could not have been finishing
Forma interrogativa
Forma simple
could I finish? could you finish? could she finish? could we finish? could you finish? could they finish?
Forma con V-ing
could I be finishing? could you be finishing? could she be finishing? could we be finishing? could you be finishing? could they be finishing?
Perfecto
could I have finished? could you have finished? could she have finished? could we have finished? could you have finished? could they have finished?
Perfecto con V-ing
could I have been finishing? could you have been finishing? could she have been finishing? could we have been finishing? could you have been finishing? could they have been finishing?
Forma interro-negativa
Forma simple
could I not finish? could you not finish? could she not finish? could we not finish? could you not finish? could they not finish?
Forma con V-ing
could I not be finishing? could you not be finishing? could she not be finishing? could we not be finishing? could you not be finishing? could they not be finishing?
Perfecto
could I not have finished? could you not have finished? could she not have finished? could we not have finished? could you not have finished? could they not have finished?
Perfecto con V-ing
could I not have been finishing? could you not have been finishing? could she not have been finishing? could we not have been finishing? could you not have been finishing? could they not have been finishing?