English verb conjugation
MUST CHARM

Regular verb: charm - charmed - charmed

Affirmation

Simple form	V-ing form
I must charm you must charm she must charm we must charm you must charm they must charm	I must be charming you must be charming she 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 she 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 she 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 she 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 she 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 she 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 she 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 she charm? must we charm? must you charm? must they charm?	must I be charming? must you be charming? must she 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 she 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 she 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 she 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 she 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 she 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 she have been charming? mustn't we have been charming? mustn't you have been charming? mustn't they have been charming?