I could camber you could camber she could camber we could camber you could camber they could camber
V-ing form
I could be cambering you could be cambering she could be cambering we could be cambering you could be cambering they could be cambering
Perfect
I could have cambered you could have cambered she could have cambered we could have cambered you could have cambered they could have cambered
V-ing perfect
I could have been cambering you could have been cambering she could have been cambering we could have been cambering you could have been cambering they could have been cambering
Negation
Simple form
I could not camber you could not camber she could not camber we could not camber you could not camber they could not camber
V-ing form
I could not be cambering you could not be cambering she could not be cambering we could not be cambering you could not be cambering they could not be cambering
Perfect
I could not have cambered you could not have cambered she could not have cambered we could not have cambered you could not have cambered they could not have cambered
V-ing perfect
I could not have been cambering you could not have been cambering she could not have been cambering we could not have been cambering you could not have been cambering they could not have been cambering
Interrogative form
Simple form
could I camber? could you camber? could she camber? could we camber? could you camber? could they camber?
V-ing form
could I be cambering? could you be cambering? could she be cambering? could we be cambering? could you be cambering? could they be cambering?
Perfect
could I have cambered? could you have cambered? could she have cambered? could we have cambered? could you have cambered? could they have cambered?
V-ing perfect
could I have been cambering? could you have been cambering? could she have been cambering? could we have been cambering? could you have been cambering? could they have been cambering?
Interro-negative form
Simple form
could I not camber? could you not camber? could she not camber? could we not camber? could you not camber? could they not camber?
V-ing form
could I not be cambering? could you not be cambering? could she not be cambering? could we not be cambering? could you not be cambering? could they not be cambering?
Perfect
could I not have cambered? could you not have cambered? could she not have cambered? could we not have cambered? could you not have cambered? could they not have cambered?
V-ing perfect
could I not have been cambering? could you not have been cambering? could she not have been cambering? could we not have been cambering? could you not have been cambering? could they not have been cambering?