English verb conjugation
MUST DEPART

Regular verb: depart - departed - departed

Affirmation

Simple form	V-ing form
I must depart you must depart he must depart we must depart you must depart they must depart	I must be departing you must be departing he 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 he 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 he 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 mustn't depart you mustn't depart he mustn't depart we mustn't depart you mustn't depart they mustn't depart	I mustn't be departing you mustn't be departing he mustn't be departing we mustn't be departing you mustn't be departing they mustn't be departing
Perfect	V-ing perfect
I mustn't have departed you mustn't have departed he mustn't have departed we mustn't have departed you mustn't have departed they mustn't have departed	I mustn't have been departing you mustn't have been departing he mustn't have been departing we mustn't have been departing you mustn't have been departing they mustn't have been departing

Interrogative form

Simple form	V-ing form
must I depart? must you depart? must he depart? must we depart? must you depart? must they depart?	must I be departing? must you be departing? must he 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 he 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 he 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
mustn't I depart? mustn't you depart? mustn't he depart? mustn't we depart? mustn't you depart? mustn't they depart?	mustn't I be departing? mustn't you be departing? mustn't he be departing? mustn't we be departing? mustn't you be departing? mustn't they be departing?
Perfect	V-ing perfect
mustn't I have departed? mustn't you have departed? mustn't he have departed? mustn't we have departed? mustn't you have departed? mustn't they have departed?	mustn't I have been departing? mustn't you have been departing? mustn't he have been departing? mustn't we have been departing? mustn't you have been departing? mustn't they have been departing?