I can cheer you can cheer she can cheer we can cheer you can cheer they can cheer
V-ing form
I can be cheering you can be cheering she can be cheering we can be cheering you can be cheering they can be cheering
Perfect
I can have cheered you can have cheered she can have cheered we can have cheered you can have cheered they can have cheered
V-ing perfect
I can have been cheering you can have been cheering she can have been cheering we can have been cheering you can have been cheering they can have been cheering
Negation
Simple form
I cannot cheer you cannot cheer she cannot cheer we cannot cheer you cannot cheer they cannot cheer
V-ing form
I cannot be cheering you cannot be cheering she cannot be cheering we cannot be cheering you cannot be cheering they cannot be cheering
Perfect
I cannot have cheered you cannot have cheered she cannot have cheered we cannot have cheered you cannot have cheered they cannot have cheered
V-ing perfect
I cannot have been cheering you cannot have been cheering she cannot have been cheering we cannot have been cheering you cannot have been cheering they cannot have been cheering
Interrogative form
Simple form
can I cheer? can you cheer? can she cheer? can we cheer? can you cheer? can they cheer?
V-ing form
can I be cheering? can you be cheering? can she be cheering? can we be cheering? can you be cheering? can they be cheering?
Perfect
can I have cheered? can you have cheered? can she have cheered? can we have cheered? can you have cheered? can they have cheered?
V-ing perfect
can I have been cheering? can you have been cheering? can she have been cheering? can we have been cheering? can you have been cheering? can they have been cheering?
Interro-negative form
Simple form
can I not cheer? can you not cheer? can she not cheer? can we not cheer? can you not cheer? can they not cheer?
V-ing form
can I not be cheering? can you not be cheering? can she not be cheering? can we not be cheering? can you not be cheering? can they not be cheering?
Perfect
can I not have cheered? can you not have cheered? can she not have cheered? can we not have cheered? can you not have cheered? can they not have cheered?
V-ing perfect
can I not have been cheering? can you not have been cheering? can she not have been cheering? can we not have been cheering? can you not have been cheering? can they not have been cheering?