English verb conjugation
MUST MAJOR

Regular verb: major - majored - majored

Affirmation

Simple form	V-ing form
I must major you must major he must major we must major you must major they must major	I must be majoring you must be majoring he must be majoring we must be majoring you must be majoring they must be majoring
Perfect	V-ing perfect
I must have majored you must have majored he must have majored we must have majored you must have majored they must have majored	I must have been majoring you must have been majoring he must have been majoring we must have been majoring you must have been majoring they must have been majoring

Negation

Simple form	V-ing form
I mustn't major you mustn't major he mustn't major we mustn't major you mustn't major they mustn't major	I mustn't be majoring you mustn't be majoring he mustn't be majoring we mustn't be majoring you mustn't be majoring they mustn't be majoring
Perfect	V-ing perfect
I mustn't have majored you mustn't have majored he mustn't have majored we mustn't have majored you mustn't have majored they mustn't have majored	I mustn't have been majoring you mustn't have been majoring he mustn't have been majoring we mustn't have been majoring you mustn't have been majoring they mustn't have been majoring

Interrogative form

Simple form	V-ing form
must I major? must you major? must he major? must we major? must you major? must they major?	must I be majoring? must you be majoring? must he be majoring? must we be majoring? must you be majoring? must they be majoring?
Perfect	V-ing perfect
must I have majored? must you have majored? must he have majored? must we have majored? must you have majored? must they have majored?	must I have been majoring? must you have been majoring? must he have been majoring? must we have been majoring? must you have been majoring? must they have been majoring?

Interro-negative form

Simple form	V-ing form
mustn't I major? mustn't you major? mustn't he major? mustn't we major? mustn't you major? mustn't they major?	mustn't I be majoring? mustn't you be majoring? mustn't he be majoring? mustn't we be majoring? mustn't you be majoring? mustn't they be majoring?
Perfect	V-ing perfect
mustn't I have majored? mustn't you have majored? mustn't he have majored? mustn't we have majored? mustn't you have majored? mustn't they have majored?	mustn't I have been majoring? mustn't you have been majoring? mustn't he have been majoring? mustn't we have been majoring? mustn't you have been majoring? mustn't they have been majoring?