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