English verb conjugation
MUST BARBER

Regular verb: barber - barbered - barbered

Affirmation

Simple form	V-ing form
I must barber you must barber he must barber we must barber you must barber they must barber	I must be barbering you must be barbering he must be barbering we must be barbering you must be barbering they must be barbering
Perfect	V-ing perfect
I must have barbered you must have barbered he must have barbered we must have barbered you must have barbered they must have barbered	I must have been barbering you must have been barbering he must have been barbering we must have been barbering you must have been barbering they must have been barbering

Negation

Simple form	V-ing form
I mustn't barber you mustn't barber he mustn't barber we mustn't barber you mustn't barber they mustn't barber	I mustn't be barbering you mustn't be barbering he mustn't be barbering we mustn't be barbering you mustn't be barbering they mustn't be barbering
Perfect	V-ing perfect
I mustn't have barbered you mustn't have barbered he mustn't have barbered we mustn't have barbered you mustn't have barbered they mustn't have barbered	I mustn't have been barbering you mustn't have been barbering he mustn't have been barbering we mustn't have been barbering you mustn't have been barbering they mustn't have been barbering

Interrogative form

Simple form	V-ing form
must I barber? must you barber? must he barber? must we barber? must you barber? must they barber?	must I be barbering? must you be barbering? must he be barbering? must we be barbering? must you be barbering? must they be barbering?
Perfect	V-ing perfect
must I have barbered? must you have barbered? must he have barbered? must we have barbered? must you have barbered? must they have barbered?	must I have been barbering? must you have been barbering? must he have been barbering? must we have been barbering? must you have been barbering? must they have been barbering?

Interro-negative form

Simple form	V-ing form
mustn't I barber? mustn't you barber? mustn't he barber? mustn't we barber? mustn't you barber? mustn't they barber?	mustn't I be barbering? mustn't you be barbering? mustn't he be barbering? mustn't we be barbering? mustn't you be barbering? mustn't they be barbering?
Perfect	V-ing perfect
mustn't I have barbered? mustn't you have barbered? mustn't he have barbered? mustn't we have barbered? mustn't you have barbered? mustn't they have barbered?	mustn't I have been barbering? mustn't you have been barbering? mustn't he have been barbering? mustn't we have been barbering? mustn't you have been barbering? mustn't they have been barbering?