English verb conjugation
MUST STAR

Regular verb: star - starred - starred

Affirmation

Simple form	V-ing form
I must star you must star she must star we must star you must star they must star	I must be starring you must be starring she must be starring we must be starring you must be starring they must be starring
Perfect	V-ing perfect
I must have starred you must have starred she must have starred we must have starred you must have starred they must have starred	I must have been starring you must have been starring she must have been starring we must have been starring you must have been starring they must have been starring

Negation

Simple form	V-ing form
I must not star you must not star she must not star we must not star you must not star they must not star	I must not be starring you must not be starring she must not be starring we must not be starring you must not be starring they must not be starring
Perfect	V-ing perfect
I must not have starred you must not have starred she must not have starred we must not have starred you must not have starred they must not have starred	I must not have been starring you must not have been starring she must not have been starring we must not have been starring you must not have been starring they must not have been starring

Interrogative form

Simple form	V-ing form
must I star? must you star? must she star? must we star? must you star? must they star?	must I be starring? must you be starring? must she be starring? must we be starring? must you be starring? must they be starring?
Perfect	V-ing perfect
must I have starred? must you have starred? must she have starred? must we have starred? must you have starred? must they have starred?	must I have been starring? must you have been starring? must she have been starring? must we have been starring? must you have been starring? must they have been starring?

Interro-negative form

Simple form	V-ing form
must I not star? must you not star? must she not star? must we not star? must you not star? must they not star?	must I not be starring? must you not be starring? must she not be starring? must we not be starring? must you not be starring? must they not be starring?
Perfect	V-ing perfect
must I not have starred? must you not have starred? must she not have starred? must we not have starred? must you not have starred? must they not have starred?	must I not have been starring? must you not have been starring? must she not have been starring? must we not have been starring? must you not have been starring? must they not have been starring?