English verb conjugation
MUST MAJOR

Regular verb: major - majored - majored

Affirmation

Simple form	V-ing form
I must major you must major she must major we must major you must major they must major	I must be majoring you must be majoring she 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 she 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 she 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 must not major you must not major she must not major we must not major you must not major they must not major	I must not be majoring you must not be majoring she must not be majoring we must not be majoring you must not be majoring they must not be majoring
Perfect	V-ing perfect
I must not have majored you must not have majored she must not have majored we must not have majored you must not have majored they must not have majored	I must not have been majoring you must not have been majoring she must not have been majoring we must not have been majoring you must not have been majoring they must not have been majoring

Interrogative form

Simple form	V-ing form
must I major? must you major? must she major? must we major? must you major? must they major?	must I be majoring? must you be majoring? must she 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 she 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 she 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
must I not major? must you not major? must she not major? must we not major? must you not major? must they not major?	must I not be majoring? must you not be majoring? must she not be majoring? must we not be majoring? must you not be majoring? must they not be majoring?
Perfect	V-ing perfect
must I not have majored? must you not have majored? must she not have majored? must we not have majored? must you not have majored? must they not have majored?	must I not have been majoring? must you not have been majoring? must she not have been majoring? must we not have been majoring? must you not have been majoring? must they not have been majoring?