English verb conjugation
MUST CHAGRIN

Regular verb: chagrin - chagrined - chagrined

Affirmation

Simple form	V-ing form
I must chagrin you must chagrin she must chagrin we must chagrin you must chagrin they must chagrin	I must be chagrining you must be chagrining she must be chagrining we must be chagrining you must be chagrining they must be chagrining
Perfect	V-ing perfect
I must have chagrined you must have chagrined she must have chagrined we must have chagrined you must have chagrined they must have chagrined	I must have been chagrining you must have been chagrining she must have been chagrining we must have been chagrining you must have been chagrining they must have been chagrining

Negation

Simple form	V-ing form
I mustn't chagrin you mustn't chagrin she mustn't chagrin we mustn't chagrin you mustn't chagrin they mustn't chagrin	I mustn't be chagrining you mustn't be chagrining she mustn't be chagrining we mustn't be chagrining you mustn't be chagrining they mustn't be chagrining
Perfect	V-ing perfect
I mustn't have chagrined you mustn't have chagrined she mustn't have chagrined we mustn't have chagrined you mustn't have chagrined they mustn't have chagrined	I mustn't have been chagrining you mustn't have been chagrining she mustn't have been chagrining we mustn't have been chagrining you mustn't have been chagrining they mustn't have been chagrining

Interrogative form

Simple form	V-ing form
must I chagrin? must you chagrin? must she chagrin? must we chagrin? must you chagrin? must they chagrin?	must I be chagrining? must you be chagrining? must she be chagrining? must we be chagrining? must you be chagrining? must they be chagrining?
Perfect	V-ing perfect
must I have chagrined? must you have chagrined? must she have chagrined? must we have chagrined? must you have chagrined? must they have chagrined?	must I have been chagrining? must you have been chagrining? must she have been chagrining? must we have been chagrining? must you have been chagrining? must they have been chagrining?

Interro-negative form

Simple form	V-ing form
mustn't I chagrin? mustn't you chagrin? mustn't she chagrin? mustn't we chagrin? mustn't you chagrin? mustn't they chagrin?	mustn't I be chagrining? mustn't you be chagrining? mustn't she be chagrining? mustn't we be chagrining? mustn't you be chagrining? mustn't they be chagrining?
Perfect	V-ing perfect
mustn't I have chagrined? mustn't you have chagrined? mustn't she have chagrined? mustn't we have chagrined? mustn't you have chagrined? mustn't they have chagrined?	mustn't I have been chagrining? mustn't you have been chagrining? mustn't she have been chagrining? mustn't we have been chagrining? mustn't you have been chagrining? mustn't they have been chagrining?