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