English verb conjugation
MUST CHARM

Regular verb: charm - charmed - charmed

Affirmation

Simple form	V-ing form
I must charm you must charm he must charm we must charm you must charm they must charm	I must be charming you must be charming he must be charming we must be charming you must be charming they must be charming
Perfect	V-ing perfect
I must have charmed you must have charmed he must have charmed we must have charmed you must have charmed they must have charmed	I must have been charming you must have been charming he must have been charming we must have been charming you must have been charming they must have been charming

Negation

Simple form	V-ing form
I mustn't charm you mustn't charm he mustn't charm we mustn't charm you mustn't charm they mustn't charm	I mustn't be charming you mustn't be charming he mustn't be charming we mustn't be charming you mustn't be charming they mustn't be charming
Perfect	V-ing perfect
I mustn't have charmed you mustn't have charmed he mustn't have charmed we mustn't have charmed you mustn't have charmed they mustn't have charmed	I mustn't have been charming you mustn't have been charming he mustn't have been charming we mustn't have been charming you mustn't have been charming they mustn't have been charming

Interrogative form

Simple form	V-ing form
must I charm? must you charm? must he charm? must we charm? must you charm? must they charm?	must I be charming? must you be charming? must he be charming? must we be charming? must you be charming? must they be charming?
Perfect	V-ing perfect
must I have charmed? must you have charmed? must he have charmed? must we have charmed? must you have charmed? must they have charmed?	must I have been charming? must you have been charming? must he have been charming? must we have been charming? must you have been charming? must they have been charming?

Interro-negative form

Simple form	V-ing form
mustn't I charm? mustn't you charm? mustn't he charm? mustn't we charm? mustn't you charm? mustn't they charm?	mustn't I be charming? mustn't you be charming? mustn't he be charming? mustn't we be charming? mustn't you be charming? mustn't they be charming?
Perfect	V-ing perfect
mustn't I have charmed? mustn't you have charmed? mustn't he have charmed? mustn't we have charmed? mustn't you have charmed? mustn't they have charmed?	mustn't I have been charming? mustn't you have been charming? mustn't he have been charming? mustn't we have been charming? mustn't you have been charming? mustn't they have been charming?