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 mustn't star you mustn't star she mustn't star we mustn't star you mustn't star they mustn't star	I mustn't be starring you mustn't be starring she mustn't be starring we mustn't be starring you mustn't be starring they mustn't be starring
Perfect	V-ing perfect
I mustn't have starred you mustn't have starred she mustn't have starred we mustn't have starred you mustn't have starred they mustn't have starred	I mustn't have been starring you mustn't have been starring she mustn't have been starring we mustn't have been starring you mustn't have been starring they mustn't 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
mustn't I star? mustn't you star? mustn't she star? mustn't we star? mustn't you star? mustn't they star?	mustn't I be starring? mustn't you be starring? mustn't she be starring? mustn't we be starring? mustn't you be starring? mustn't they be starring?
Perfect	V-ing perfect
mustn't I have starred? mustn't you have starred? mustn't she have starred? mustn't we have starred? mustn't you have starred? mustn't they have starred?	mustn't I have been starring? mustn't you have been starring? mustn't she have been starring? mustn't we have been starring? mustn't you have been starring? mustn't they have been starring?