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