English verb conjugation
MUST CHAGRIN

Regular verb: chagrin - chagrined - chagrined

Affirmation

Simple form	V-ing form
I must chagrin you must chagrin he must chagrin we must chagrin you must chagrin they must chagrin	I must be chagrining you must be chagrining he 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 he 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 he 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 must not chagrin you must not chagrin he must not chagrin we must not chagrin you must not chagrin they must not chagrin	I must not be chagrining you must not be chagrining he must not be chagrining we must not be chagrining you must not be chagrining they must not be chagrining
Perfect	V-ing perfect
I must not have chagrined you must not have chagrined he must not have chagrined we must not have chagrined you must not have chagrined they must not have chagrined	I must not have been chagrining you must not have been chagrining he must not have been chagrining we must not have been chagrining you must not have been chagrining they must not have been chagrining

Interrogative form

Simple form	V-ing form
must I chagrin? must you chagrin? must he chagrin? must we chagrin? must you chagrin? must they chagrin?	must I be chagrining? must you be chagrining? must he 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 he 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 he 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
must I not chagrin? must you not chagrin? must he not chagrin? must we not chagrin? must you not chagrin? must they not chagrin?	must I not be chagrining? must you not be chagrining? must he not be chagrining? must we not be chagrining? must you not be chagrining? must they not be chagrining?
Perfect	V-ing perfect
must I not have chagrined? must you not have chagrined? must he not have chagrined? must we not have chagrined? must you not have chagrined? must they not have chagrined?	must I not have been chagrining? must you not have been chagrining? must he not have been chagrining? must we not have been chagrining? must you not have been chagrining? must they not have been chagrining?