must star
Verbo regular: star - starred- starred

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	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	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	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?