I could cheer you could cheer he could cheer we could cheer you could cheer they could cheer
V-ing form
I could be cheering you could be cheering he could be cheering we could be cheering you could be cheering they could be cheering
Perfect
I could have cheered you could have cheered he could have cheered we could have cheered you could have cheered they could have cheered
V-ing perfect
I could have been cheering you could have been cheering he could have been cheering we could have been cheering you could have been cheering they could have been cheering
Negation
Simple form
I couldn't cheer you couldn't cheer he couldn't cheer we couldn't cheer you couldn't cheer they couldn't cheer
V-ing form
I couldn't be cheering you couldn't be cheering he couldn't be cheering we couldn't be cheering you couldn't be cheering they couldn't be cheering
Perfect
I couldn't have cheered you couldn't have cheered he couldn't have cheered we couldn't have cheered you couldn't have cheered they couldn't have cheered
V-ing perfect
I couldn't have been cheering you couldn't have been cheering he couldn't have been cheering we couldn't have been cheering you couldn't have been cheering they couldn't have been cheering
Interrogative form
Simple form
could I cheer? could you cheer? could he cheer? could we cheer? could you cheer? could they cheer?
V-ing form
could I be cheering? could you be cheering? could he be cheering? could we be cheering? could you be cheering? could they be cheering?
Perfect
could I have cheered? could you have cheered? could he have cheered? could we have cheered? could you have cheered? could they have cheered?
V-ing perfect
could I have been cheering? could you have been cheering? could he have been cheering? could we have been cheering? could you have been cheering? could they have been cheering?
Interro-negative form
Simple form
couldn't I cheer? couldn't you cheer? couldn't he cheer? couldn't we cheer? couldn't you cheer? couldn't they cheer?
V-ing form
couldn't I be cheering? couldn't you be cheering? couldn't he be cheering? couldn't we be cheering? couldn't you be cheering? couldn't they be cheering?
Perfect
couldn't I have cheered? couldn't you have cheered? couldn't he have cheered? couldn't we have cheered? couldn't you have cheered? couldn't they have cheered?
V-ing perfect
couldn't I have been cheering? couldn't you have been cheering? couldn't he have been cheering? couldn't we have been cheering? couldn't you have been cheering? couldn't they have been cheering?