English verb conjugation
MUST UNBAR

Regular verb: unbar - unbarred - unbarred

Affirmation

Simple form	V-ing form
I must unbar you must unbar she must unbar we must unbar you must unbar they must unbar	I must be unbarring you must be unbarring she must be unbarring we must be unbarring you must be unbarring they must be unbarring
Perfect	V-ing perfect
I must have unbarred you must have unbarred she must have unbarred we must have unbarred you must have unbarred they must have unbarred	I must have been unbarring you must have been unbarring she must have been unbarring we must have been unbarring you must have been unbarring they must have been unbarring

Negation

Simple form	V-ing form
I must not unbar you must not unbar she must not unbar we must not unbar you must not unbar they must not unbar	I must not be unbarring you must not be unbarring she must not be unbarring we must not be unbarring you must not be unbarring they must not be unbarring
Perfect	V-ing perfect
I must not have unbarred you must not have unbarred she must not have unbarred we must not have unbarred you must not have unbarred they must not have unbarred	I must not have been unbarring you must not have been unbarring she must not have been unbarring we must not have been unbarring you must not have been unbarring they must not have been unbarring

Interrogative form

Simple form	V-ing form
must I unbar? must you unbar? must she unbar? must we unbar? must you unbar? must they unbar?	must I be unbarring? must you be unbarring? must she be unbarring? must we be unbarring? must you be unbarring? must they be unbarring?
Perfect	V-ing perfect
must I have unbarred? must you have unbarred? must she have unbarred? must we have unbarred? must you have unbarred? must they have unbarred?	must I have been unbarring? must you have been unbarring? must she have been unbarring? must we have been unbarring? must you have been unbarring? must they have been unbarring?

Interro-negative form

Simple form	V-ing form
must I not unbar? must you not unbar? must she not unbar? must we not unbar? must you not unbar? must they not unbar?	must I not be unbarring? must you not be unbarring? must she not be unbarring? must we not be unbarring? must you not be unbarring? must they not be unbarring?
Perfect	V-ing perfect
must I not have unbarred? must you not have unbarred? must she not have unbarred? must we not have unbarred? must you not have unbarred? must they not have unbarred?	must I not have been unbarring? must you not have been unbarring? must she not have been unbarring? must we not have been unbarring? must you not have been unbarring? must they not have been unbarring?