English verb conjugation
COULD IMPRISON

Regular verb: imprison - imprisoned - imprisoned

Affirmation

Simple form	V-ing form
I could imprison you could imprison he could imprison we could imprison you could imprison they could imprison	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	V-ing 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	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	V-ing 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	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	V-ing 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	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	V-ing form
could I imprison? could you imprison? could he imprison? could we imprison? could you imprison? could they imprison?	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	V-ing 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?	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	V-ing 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?	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	V-ing 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?	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?