I must avenge you must avenge she must avenge we must avenge you must avenge they must avenge
V-ing form
I must be avenging you must be avenging she must be avenging we must be avenging you must be avenging they must be avenging
Perfect
I must have avenged you must have avenged she must have avenged we must have avenged you must have avenged they must have avenged
V-ing perfect
I must have been avenging you must have been avenging she must have been avenging we must have been avenging you must have been avenging they must have been avenging
Negation
Simple form
I mustn't avenge you mustn't avenge she mustn't avenge we mustn't avenge you mustn't avenge they mustn't avenge
V-ing form
I mustn't be avenging you mustn't be avenging she mustn't be avenging we mustn't be avenging you mustn't be avenging they mustn't be avenging
Perfect
I mustn't have avenged you mustn't have avenged she mustn't have avenged we mustn't have avenged you mustn't have avenged they mustn't have avenged
V-ing perfect
I mustn't have been avenging you mustn't have been avenging she mustn't have been avenging we mustn't have been avenging you mustn't have been avenging they mustn't have been avenging
Interrogative form
Simple form
must I avenge? must you avenge? must she avenge? must we avenge? must you avenge? must they avenge?
V-ing form
must I be avenging? must you be avenging? must she be avenging? must we be avenging? must you be avenging? must they be avenging?
Perfect
must I have avenged? must you have avenged? must she have avenged? must we have avenged? must you have avenged? must they have avenged?
V-ing perfect
must I have been avenging? must you have been avenging? must she have been avenging? must we have been avenging? must you have been avenging? must they have been avenging?
Interro-negative form
Simple form
mustn't I avenge? mustn't you avenge? mustn't she avenge? mustn't we avenge? mustn't you avenge? mustn't they avenge?
V-ing form
mustn't I be avenging? mustn't you be avenging? mustn't she be avenging? mustn't we be avenging? mustn't you be avenging? mustn't they be avenging?
Perfect
mustn't I have avenged? mustn't you have avenged? mustn't she have avenged? mustn't we have avenged? mustn't you have avenged? mustn't they have avenged?
V-ing perfect
mustn't I have been avenging? mustn't you have been avenging? mustn't she have been avenging? mustn't we have been avenging? mustn't you have been avenging? mustn't they have been avenging?