English verb conjugation
MUST SHORTCHANGE

Regular verb: shortchange - shortchanged - shortchanged

Affirmation

Simple form	V-ing form
I must shortchange you must shortchange he must shortchange we must shortchange you must shortchange they must shortchange	I must be shortchanging you must be shortchanging he must be shortchanging we must be shortchanging you must be shortchanging they must be shortchanging
Perfect	V-ing perfect
I must have shortchanged you must have shortchanged he must have shortchanged we must have shortchanged you must have shortchanged they must have shortchanged	I must have been shortchanging you must have been shortchanging he must have been shortchanging we must have been shortchanging you must have been shortchanging they must have been shortchanging

Negation

Simple form	V-ing form
I mustn't shortchange you mustn't shortchange he mustn't shortchange we mustn't shortchange you mustn't shortchange they mustn't shortchange	I mustn't be shortchanging you mustn't be shortchanging he mustn't be shortchanging we mustn't be shortchanging you mustn't be shortchanging they mustn't be shortchanging
Perfect	V-ing perfect
I mustn't have shortchanged you mustn't have shortchanged he mustn't have shortchanged we mustn't have shortchanged you mustn't have shortchanged they mustn't have shortchanged	I mustn't have been shortchanging you mustn't have been shortchanging he mustn't have been shortchanging we mustn't have been shortchanging you mustn't have been shortchanging they mustn't have been shortchanging

Interrogative form

Simple form	V-ing form
must I shortchange? must you shortchange? must he shortchange? must we shortchange? must you shortchange? must they shortchange?	must I be shortchanging? must you be shortchanging? must he be shortchanging? must we be shortchanging? must you be shortchanging? must they be shortchanging?
Perfect	V-ing perfect
must I have shortchanged? must you have shortchanged? must he have shortchanged? must we have shortchanged? must you have shortchanged? must they have shortchanged?	must I have been shortchanging? must you have been shortchanging? must he have been shortchanging? must we have been shortchanging? must you have been shortchanging? must they have been shortchanging?

Interro-negative form

Simple form	V-ing form
mustn't I shortchange? mustn't you shortchange? mustn't he shortchange? mustn't we shortchange? mustn't you shortchange? mustn't they shortchange?	mustn't I be shortchanging? mustn't you be shortchanging? mustn't he be shortchanging? mustn't we be shortchanging? mustn't you be shortchanging? mustn't they be shortchanging?
Perfect	V-ing perfect
mustn't I have shortchanged? mustn't you have shortchanged? mustn't he have shortchanged? mustn't we have shortchanged? mustn't you have shortchanged? mustn't they have shortchanged?	mustn't I have been shortchanging? mustn't you have been shortchanging? mustn't he have been shortchanging? mustn't we have been shortchanging? mustn't you have been shortchanging? mustn't they have been shortchanging?