I could gorge you could gorge she could gorge we could gorge you could gorge they could gorge
V-ing form
I could be gorging you could be gorging she could be gorging we could be gorging you could be gorging they could be gorging
Perfect
I could have gorged you could have gorged she could have gorged we could have gorged you could have gorged they could have gorged
V-ing perfect
I could have been gorging you could have been gorging she could have been gorging we could have been gorging you could have been gorging they could have been gorging
Negation
Simple form
I could not gorge you could not gorge she could not gorge we could not gorge you could not gorge they could not gorge
V-ing form
I could not be gorging you could not be gorging she could not be gorging we could not be gorging you could not be gorging they could not be gorging
Perfect
I could not have gorged you could not have gorged she could not have gorged we could not have gorged you could not have gorged they could not have gorged
V-ing perfect
I could not have been gorging you could not have been gorging she could not have been gorging we could not have been gorging you could not have been gorging they could not have been gorging
Interrogative form
Simple form
could I gorge? could you gorge? could she gorge? could we gorge? could you gorge? could they gorge?
V-ing form
could I be gorging? could you be gorging? could she be gorging? could we be gorging? could you be gorging? could they be gorging?
Perfect
could I have gorged? could you have gorged? could she have gorged? could we have gorged? could you have gorged? could they have gorged?
V-ing perfect
could I have been gorging? could you have been gorging? could she have been gorging? could we have been gorging? could you have been gorging? could they have been gorging?
Interro-negative form
Simple form
could I not gorge? could you not gorge? could she not gorge? could we not gorge? could you not gorge? could they not gorge?
V-ing form
could I not be gorging? could you not be gorging? could she not be gorging? could we not be gorging? could you not be gorging? could they not be gorging?
Perfect
could I not have gorged? could you not have gorged? could she not have gorged? could we not have gorged? could you not have gorged? could they not have gorged?
V-ing perfect
could I not have been gorging? could you not have been gorging? could she not have been gorging? could we not have been gorging? could you not have been gorging? could they not have been gorging?