must study
Regelmä&szlig;iges Verb: study - studied- studied

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must study
you must study
he must study
we must study
you must study
they must study 	I must be studying
you must be studying
he must be studying
we must be studying
you must be studying
they must be studying	I must have studied
you must have studied
he must have studied
we must have studied
you must have studied
they must have studied	I must have been studying
you must have been studying
he must have been studying
we must have been studying
you must have been studying
they must have been studying	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't study
you mustn't study
he mustn't study
we mustn't study
you mustn't study
they mustn't study 	I mustn't be studying
you mustn't be studying
he mustn't be studying
we mustn't be studying
you mustn't be studying
they mustn't be studying	I mustn't have studied
you mustn't have studied
he mustn't have studied
we mustn't have studied
you mustn't have studied
they mustn't have studied	I mustn't have been studying
you mustn't have been studying
he mustn't have been studying
we mustn't have been studying
you mustn't have been studying
they mustn't have been studying	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I study?
must you study?
must he study?
must we study?
must you study?
must they study? 	must I be studying?
must you be studying?
must he be studying?
must we be studying?
must you be studying?
must they be studying? 	must I have studied?
must you have studied?
must he have studied?
must we have studied?
must you have studied?
must they have studied? 	must I have been studying?
must you have been studying?
must he have been studying?
must we have been studying?
must you have been studying?
must they have been studying? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I study?
mustn't you study?
mustn't he study?
mustn't we study?
mustn't you study?
mustn't they study? 	mustn't I be studying?
mustn't you be studying?
mustn't he be studying?
mustn't we be studying?
mustn't you be studying?
mustn't they be studying? 	mustn't I have studied?
mustn't you have studied?
mustn't he have studied?
mustn't we have studied?
mustn't you have studied?
mustn't they have studied? 	mustn't I have been studying?
mustn't you have been studying?
mustn't he have been studying?
mustn't we have been studying?
mustn't you have been studying?
mustn't they have been studying?