English verb conjugation
MUST INFLECT

Regular verb: inflect - inflected - inflected

Affirmation

Simple form	V-ing form
I must inflect you must inflect she must inflect we must inflect you must inflect they must inflect	I must be inflecting you must be inflecting she must be inflecting we must be inflecting you must be inflecting they must be inflecting
Perfect	V-ing perfect
I must have inflected you must have inflected she must have inflected we must have inflected you must have inflected they must have inflected	I must have been inflecting you must have been inflecting she must have been inflecting we must have been inflecting you must have been inflecting they must have been inflecting

Negation

Simple form	V-ing form
I mustn't inflect you mustn't inflect she mustn't inflect we mustn't inflect you mustn't inflect they mustn't inflect	I mustn't be inflecting you mustn't be inflecting she mustn't be inflecting we mustn't be inflecting you mustn't be inflecting they mustn't be inflecting
Perfect	V-ing perfect
I mustn't have inflected you mustn't have inflected she mustn't have inflected we mustn't have inflected you mustn't have inflected they mustn't have inflected	I mustn't have been inflecting you mustn't have been inflecting she mustn't have been inflecting we mustn't have been inflecting you mustn't have been inflecting they mustn't have been inflecting

Interrogative form

Simple form	V-ing form
must I inflect? must you inflect? must she inflect? must we inflect? must you inflect? must they inflect?	must I be inflecting? must you be inflecting? must she be inflecting? must we be inflecting? must you be inflecting? must they be inflecting?
Perfect	V-ing perfect
must I have inflected? must you have inflected? must she have inflected? must we have inflected? must you have inflected? must they have inflected?	must I have been inflecting? must you have been inflecting? must she have been inflecting? must we have been inflecting? must you have been inflecting? must they have been inflecting?

Interro-negative form

Simple form	V-ing form
mustn't I inflect? mustn't you inflect? mustn't she inflect? mustn't we inflect? mustn't you inflect? mustn't they inflect?	mustn't I be inflecting? mustn't you be inflecting? mustn't she be inflecting? mustn't we be inflecting? mustn't you be inflecting? mustn't they be inflecting?
Perfect	V-ing perfect
mustn't I have inflected? mustn't you have inflected? mustn't she have inflected? mustn't we have inflected? mustn't you have inflected? mustn't they have inflected?	mustn't I have been inflecting? mustn't you have been inflecting? mustn't she have been inflecting? mustn't we have been inflecting? mustn't you have been inflecting? mustn't they have been inflecting?