I could accompany you could accompany she could accompany we could accompany you could accompany they could accompany
V-ing form
I could be accompanying you could be accompanying she could be accompanying we could be accompanying you could be accompanying they could be accompanying
Perfect
I could have accompanied you could have accompanied she could have accompanied we could have accompanied you could have accompanied they could have accompanied
V-ing perfect
I could have been accompanying you could have been accompanying she could have been accompanying we could have been accompanying you could have been accompanying they could have been accompanying
Negation
Simple form
I could not accompany you could not accompany she could not accompany we could not accompany you could not accompany they could not accompany
V-ing form
I could not be accompanying you could not be accompanying she could not be accompanying we could not be accompanying you could not be accompanying they could not be accompanying
Perfect
I could not have accompanied you could not have accompanied she could not have accompanied we could not have accompanied you could not have accompanied they could not have accompanied
V-ing perfect
I could not have been accompanying you could not have been accompanying she could not have been accompanying we could not have been accompanying you could not have been accompanying they could not have been accompanying
Interrogative form
Simple form
could I accompany? could you accompany? could she accompany? could we accompany? could you accompany? could they accompany?
V-ing form
could I be accompanying? could you be accompanying? could she be accompanying? could we be accompanying? could you be accompanying? could they be accompanying?
Perfect
could I have accompanied? could you have accompanied? could she have accompanied? could we have accompanied? could you have accompanied? could they have accompanied?
V-ing perfect
could I have been accompanying? could you have been accompanying? could she have been accompanying? could we have been accompanying? could you have been accompanying? could they have been accompanying?
Interro-negative form
Simple form
could I not accompany? could you not accompany? could she not accompany? could we not accompany? could you not accompany? could they not accompany?
V-ing form
could I not be accompanying? could you not be accompanying? could she not be accompanying? could we not be accompanying? could you not be accompanying? could they not be accompanying?
Perfect
could I not have accompanied? could you not have accompanied? could she not have accompanied? could we not have accompanied? could you not have accompanied? could they not have accompanied?
V-ing perfect
could I not have been accompanying? could you not have been accompanying? could she not have been accompanying? could we not have been accompanying? could you not have been accompanying? could they not have been accompanying?