must muff
Regelmä&szlig;iges Verb: muff - muffed- muffed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must muff
you must muff
she must muff
we must muff
you must muff
they must muff 	I must be muffing
you must be muffing
she must be muffing
we must be muffing
you must be muffing
they must be muffing	I must have muffed
you must have muffed
she must have muffed
we must have muffed
you must have muffed
they must have muffed	I must have been muffing
you must have been muffing
she must have been muffing
we must have been muffing
you must have been muffing
they must have been muffing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't muff
you mustn't muff
she mustn't muff
we mustn't muff
you mustn't muff
they mustn't muff 	I mustn't be muffing
you mustn't be muffing
she mustn't be muffing
we mustn't be muffing
you mustn't be muffing
they mustn't be muffing	I mustn't have muffed
you mustn't have muffed
she mustn't have muffed
we mustn't have muffed
you mustn't have muffed
they mustn't have muffed	I mustn't have been muffing
you mustn't have been muffing
she mustn't have been muffing
we mustn't have been muffing
you mustn't have been muffing
they mustn't have been muffing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I muff?
must you muff?
must she muff?
must we muff?
must you muff?
must they muff? 	must I be muffing?
must you be muffing?
must she be muffing?
must we be muffing?
must you be muffing?
must they be muffing? 	must I have muffed?
must you have muffed?
must she have muffed?
must we have muffed?
must you have muffed?
must they have muffed? 	must I have been muffing?
must you have been muffing?
must she have been muffing?
must we have been muffing?
must you have been muffing?
must they have been muffing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I muff?
mustn't you muff?
mustn't she muff?
mustn't we muff?
mustn't you muff?
mustn't they muff? 	mustn't I be muffing?
mustn't you be muffing?
mustn't she be muffing?
mustn't we be muffing?
mustn't you be muffing?
mustn't they be muffing? 	mustn't I have muffed?
mustn't you have muffed?
mustn't she have muffed?
mustn't we have muffed?
mustn't you have muffed?
mustn't they have muffed? 	mustn't I have been muffing?
mustn't you have been muffing?
mustn't she have been muffing?
mustn't we have been muffing?
mustn't you have been muffing?
mustn't they have been muffing?