English verb conjugation
MUST BANG

Regular verb: bang - banged - banged

Affirmation

Simple form	V-ing form
I must bang you must bang she must bang we must bang you must bang they must bang	I must be banging you must be banging she must be banging we must be banging you must be banging they must be banging
Perfect	V-ing perfect
I must have banged you must have banged she must have banged we must have banged you must have banged they must have banged	I must have been banging you must have been banging she must have been banging we must have been banging you must have been banging they must have been banging

Negation

Simple form	V-ing form
I mustn't bang you mustn't bang she mustn't bang we mustn't bang you mustn't bang they mustn't bang	I mustn't be banging you mustn't be banging she mustn't be banging we mustn't be banging you mustn't be banging they mustn't be banging
Perfect	V-ing perfect
I mustn't have banged you mustn't have banged she mustn't have banged we mustn't have banged you mustn't have banged they mustn't have banged	I mustn't have been banging you mustn't have been banging she mustn't have been banging we mustn't have been banging you mustn't have been banging they mustn't have been banging

Interrogative form

Simple form	V-ing form
must I bang? must you bang? must she bang? must we bang? must you bang? must they bang?	must I be banging? must you be banging? must she be banging? must we be banging? must you be banging? must they be banging?
Perfect	V-ing perfect
must I have banged? must you have banged? must she have banged? must we have banged? must you have banged? must they have banged?	must I have been banging? must you have been banging? must she have been banging? must we have been banging? must you have been banging? must they have been banging?

Interro-negative form

Simple form	V-ing form
mustn't I bang? mustn't you bang? mustn't she bang? mustn't we bang? mustn't you bang? mustn't they bang?	mustn't I be banging? mustn't you be banging? mustn't she be banging? mustn't we be banging? mustn't you be banging? mustn't they be banging?
Perfect	V-ing perfect
mustn't I have banged? mustn't you have banged? mustn't she have banged? mustn't we have banged? mustn't you have banged? mustn't they have banged?	mustn't I have been banging? mustn't you have been banging? mustn't she have been banging? mustn't we have been banging? mustn't you have been banging? mustn't they have been banging?