English verb conjugation
MUST DEPART

Regular verb: depart - departed - departed

Affirmation

Simple form	V-ing form
I must depart you must depart she must depart we must depart you must depart they must depart	I must be departing you must be departing she must be departing we must be departing you must be departing they must be departing
Perfect	V-ing perfect
I must have departed you must have departed she must have departed we must have departed you must have departed they must have departed	I must have been departing you must have been departing she must have been departing we must have been departing you must have been departing they must have been departing

Negation

Simple form	V-ing form
I must not depart you must not depart she must not depart we must not depart you must not depart they must not depart	I must not be departing you must not be departing she must not be departing we must not be departing you must not be departing they must not be departing
Perfect	V-ing perfect
I must not have departed you must not have departed she must not have departed we must not have departed you must not have departed they must not have departed	I must not have been departing you must not have been departing she must not have been departing we must not have been departing you must not have been departing they must not have been departing

Interrogative form

Simple form	V-ing form
must I depart? must you depart? must she depart? must we depart? must you depart? must they depart?	must I be departing? must you be departing? must she be departing? must we be departing? must you be departing? must they be departing?
Perfect	V-ing perfect
must I have departed? must you have departed? must she have departed? must we have departed? must you have departed? must they have departed?	must I have been departing? must you have been departing? must she have been departing? must we have been departing? must you have been departing? must they have been departing?

Interro-negative form

Simple form	V-ing form
must I not depart? must you not depart? must she not depart? must we not depart? must you not depart? must they not depart?	must I not be departing? must you not be departing? must she not be departing? must we not be departing? must you not be departing? must they not be departing?
Perfect	V-ing perfect
must I not have departed? must you not have departed? must she not have departed? must we not have departed? must you not have departed? must they not have departed?	must I not have been departing? must you not have been departing? must she not have been departing? must we not have been departing? must you not have been departing? must they not have been departing?