I can over you can over she can over we can over you can over they can over
V-ing form
I can be overing you can be overing she can be overing we can be overing you can be overing they can be overing
Perfect
I can have overed you can have overed she can have overed we can have overed you can have overed they can have overed
V-ing perfect
I can have been overing you can have been overing she can have been overing we can have been overing you can have been overing they can have been overing
Negation
Simple form
I can't over you can't over she can't over we can't over you can't over they can't over
V-ing form
I can't be overing you can't be overing she can't be overing we can't be overing you can't be overing they can't be overing
Perfect
I can't have overed you can't have overed she can't have overed we can't have overed you can't have overed they can't have overed
V-ing perfect
I can't have been overing you can't have been overing she can't have been overing we can't have been overing you can't have been overing they can't have been overing
Interrogative form
Simple form
can I over? can you over? can she over? can we over? can you over? can they over?
V-ing form
can I be overing? can you be overing? can she be overing? can we be overing? can you be overing? can they be overing?
Perfect
can I have overed? can you have overed? can she have overed? can we have overed? can you have overed? can they have overed?
V-ing perfect
can I have been overing? can you have been overing? can she have been overing? can we have been overing? can you have been overing? can they have been overing?
Interro-negative form
Simple form
can't I over? can't you over? can't she over? can't we over? can't you over? can't they over?
V-ing form
can't I be overing? can't you be overing? can't she be overing? can't we be overing? can't you be overing? can't they be overing?
Perfect
can't I have overed? can't you have overed? can't she have overed? can't we have overed? can't you have overed? can't they have overed?
V-ing perfect
can't I have been overing? can't you have been overing? can't she have been overing? can't we have been overing? can't you have been overing? can't they have been overing?