must star
Regular verb: star - starred- starred

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