I could scarper you could scarper she could scarper we could scarper you could scarper they could scarper
V-ing form
I could be scarpering you could be scarpering she could be scarpering we could be scarpering you could be scarpering they could be scarpering
Perfect
I could have scarpered you could have scarpered she could have scarpered we could have scarpered you could have scarpered they could have scarpered
V-ing perfect
I could have been scarpering you could have been scarpering she could have been scarpering we could have been scarpering you could have been scarpering they could have been scarpering
Negation
Simple form
I could not scarper you could not scarper she could not scarper we could not scarper you could not scarper they could not scarper
V-ing form
I could not be scarpering you could not be scarpering she could not be scarpering we could not be scarpering you could not be scarpering they could not be scarpering
Perfect
I could not have scarpered you could not have scarpered she could not have scarpered we could not have scarpered you could not have scarpered they could not have scarpered
V-ing perfect
I could not have been scarpering you could not have been scarpering she could not have been scarpering we could not have been scarpering you could not have been scarpering they could not have been scarpering
Interrogative form
Simple form
could I scarper? could you scarper? could she scarper? could we scarper? could you scarper? could they scarper?
V-ing form
could I be scarpering? could you be scarpering? could she be scarpering? could we be scarpering? could you be scarpering? could they be scarpering?
Perfect
could I have scarpered? could you have scarpered? could she have scarpered? could we have scarpered? could you have scarpered? could they have scarpered?
V-ing perfect
could I have been scarpering? could you have been scarpering? could she have been scarpering? could we have been scarpering? could you have been scarpering? could they have been scarpering?
Interro-negative form
Simple form
could I not scarper? could you not scarper? could she not scarper? could we not scarper? could you not scarper? could they not scarper?
V-ing form
could I not be scarpering? could you not be scarpering? could she not be scarpering? could we not be scarpering? could you not be scarpering? could they not be scarpering?
Perfect
could I not have scarpered? could you not have scarpered? could she not have scarpered? could we not have scarpered? could you not have scarpered? could they not have scarpered?
V-ing perfect
could I not have been scarpering? could you not have been scarpering? could she not have been scarpering? could we not have been scarpering? could you not have been scarpering? could they not have been scarpering?