must roister
Regelmä&szlig;iges Verb: roister - roistered- roistered

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must roister
you must roister
he must roister
we must roister
you must roister
they must roister 	I must be roistering
you must be roistering
he must be roistering
we must be roistering
you must be roistering
they must be roistering	I must have roistered
you must have roistered
he must have roistered
we must have roistered
you must have roistered
they must have roistered	I must have been roistering
you must have been roistering
he must have been roistering
we must have been roistering
you must have been roistering
they must have been roistering	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must not roister
you must not roister
he must not roister
we must not roister
you must not roister
they must not roister 	I must not be roistering
you must not be roistering
he must not be roistering
we must not be roistering
you must not be roistering
they must not be roistering	I must not have roistered
you must not have roistered
he must not have roistered
we must not have roistered
you must not have roistered
they must not have roistered	I must not have been roistering
you must not have been roistering
he must not have been roistering
we must not have been roistering
you must not have been roistering
they must not have been roistering	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I roister?
must you roister?
must he roister?
must we roister?
must you roister?
must they roister? 	must I be roistering?
must you be roistering?
must he be roistering?
must we be roistering?
must you be roistering?
must they be roistering? 	must I have roistered?
must you have roistered?
must he have roistered?
must we have roistered?
must you have roistered?
must they have roistered? 	must I have been roistering?
must you have been roistering?
must he have been roistering?
must we have been roistering?
must you have been roistering?
must they have been roistering? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I not roister?
must you not roister?
must he not roister?
must we not roister?
must you not roister?
must they not roister? 	must I not be roistering?
must you not be roistering?
must he not be roistering?
must we not be roistering?
must you not be roistering?
must they not be roistering? 	must I not have roistered?
must you not have roistered?
must he not have roistered?
must we not have roistered?
must you not have roistered?
must they not have roistered? 	must I not have been roistering?
must you not have been roistering?
must he not have been roistering?
must we not have been roistering?
must you not have been roistering?
must they not have been roistering?