English verb conjugation
MUST STAR

Regular verb: star - starred - starred

Affirmation

Simple form	V-ing form
I must star you must star he must star we must star you must star they must star	I must be starring you must be starring he 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 he 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 he 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 he 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 he 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 he 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 he 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 he star? must we star? must you star? must they star?	must I be starring? must you be starring? must he 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 he 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 he 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 he 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 he 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 he 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 he have been starring? mustn't we have been starring? mustn't you have been starring? mustn't they have been starring?