English verb conjugation
MUST IMPRISON

Regular verb: imprison - imprisoned - imprisoned

Affirmation

Simple form	V-ing form
I must imprison you must imprison he must imprison we must imprison you must imprison they must imprison	I must be imprisoning you must be imprisoning he must be imprisoning we must be imprisoning you must be imprisoning they must be imprisoning
Perfect	V-ing perfect
I must have imprisoned you must have imprisoned he must have imprisoned we must have imprisoned you must have imprisoned they must have imprisoned	I must have been imprisoning you must have been imprisoning he must have been imprisoning we must have been imprisoning you must have been imprisoning they must have been imprisoning

Negation

Simple form	V-ing form
I must not imprison you must not imprison he must not imprison we must not imprison you must not imprison they must not imprison	I must not be imprisoning you must not be imprisoning he must not be imprisoning we must not be imprisoning you must not be imprisoning they must not be imprisoning
Perfect	V-ing perfect
I must not have imprisoned you must not have imprisoned he must not have imprisoned we must not have imprisoned you must not have imprisoned they must not have imprisoned	I must not have been imprisoning you must not have been imprisoning he must not have been imprisoning we must not have been imprisoning you must not have been imprisoning they must not have been imprisoning

Interrogative form

Simple form	V-ing form
must I imprison? must you imprison? must he imprison? must we imprison? must you imprison? must they imprison?	must I be imprisoning? must you be imprisoning? must he be imprisoning? must we be imprisoning? must you be imprisoning? must they be imprisoning?
Perfect	V-ing perfect
must I have imprisoned? must you have imprisoned? must he have imprisoned? must we have imprisoned? must you have imprisoned? must they have imprisoned?	must I have been imprisoning? must you have been imprisoning? must he have been imprisoning? must we have been imprisoning? must you have been imprisoning? must they have been imprisoning?

Interro-negative form

Simple form	V-ing form
must I not imprison? must you not imprison? must he not imprison? must we not imprison? must you not imprison? must they not imprison?	must I not be imprisoning? must you not be imprisoning? must he not be imprisoning? must we not be imprisoning? must you not be imprisoning? must they not be imprisoning?
Perfect	V-ing perfect
must I not have imprisoned? must you not have imprisoned? must he not have imprisoned? must we not have imprisoned? must you not have imprisoned? must they not have imprisoned?	must I not have been imprisoning? must you not have been imprisoning? must he not have been imprisoning? must we not have been imprisoning? must you not have been imprisoning? must they not have been imprisoning?