I could jeer you could jeer he could jeer we could jeer you could jeer they could jeer
V-ing form
I could be jeering you could be jeering he could be jeering we could be jeering you could be jeering they could be jeering
Perfect
I could have jeered you could have jeered he could have jeered we could have jeered you could have jeered they could have jeered
V-ing perfect
I could have been jeering you could have been jeering he could have been jeering we could have been jeering you could have been jeering they could have been jeering
Negation
Simple form
I could not jeer you could not jeer he could not jeer we could not jeer you could not jeer they could not jeer
V-ing form
I could not be jeering you could not be jeering he could not be jeering we could not be jeering you could not be jeering they could not be jeering
Perfect
I could not have jeered you could not have jeered he could not have jeered we could not have jeered you could not have jeered they could not have jeered
V-ing perfect
I could not have been jeering you could not have been jeering he could not have been jeering we could not have been jeering you could not have been jeering they could not have been jeering
Interrogative form
Simple form
could I jeer? could you jeer? could he jeer? could we jeer? could you jeer? could they jeer?
V-ing form
could I be jeering? could you be jeering? could he be jeering? could we be jeering? could you be jeering? could they be jeering?
Perfect
could I have jeered? could you have jeered? could he have jeered? could we have jeered? could you have jeered? could they have jeered?
V-ing perfect
could I have been jeering? could you have been jeering? could he have been jeering? could we have been jeering? could you have been jeering? could they have been jeering?
Interro-negative form
Simple form
could I not jeer? could you not jeer? could he not jeer? could we not jeer? could you not jeer? could they not jeer?
V-ing form
could I not be jeering? could you not be jeering? could he not be jeering? could we not be jeering? could you not be jeering? could they not be jeering?
Perfect
could I not have jeered? could you not have jeered? could he not have jeered? could we not have jeered? could you not have jeered? could they not have jeered?
V-ing perfect
could I not have been jeering? could you not have been jeering? could he not have been jeering? could we not have been jeering? could you not have been jeering? could they not have been jeering?