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