must whirr
Regelmä&szlig;iges Verb: whirr - whirred- whirred

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must whirr
you must whirr
he must whirr
we must whirr
you must whirr
they must whirr 	I must be whirring
you must be whirring
he must be whirring
we must be whirring
you must be whirring
they must be whirring	I must have whirred
you must have whirred
he must have whirred
we must have whirred
you must have whirred
they must have whirred	I must have been whirring
you must have been whirring
he must have been whirring
we must have been whirring
you must have been whirring
they must have been whirring	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't whirr
you mustn't whirr
he mustn't whirr
we mustn't whirr
you mustn't whirr
they mustn't whirr 	I mustn't be whirring
you mustn't be whirring
he mustn't be whirring
we mustn't be whirring
you mustn't be whirring
they mustn't be whirring	I mustn't have whirred
you mustn't have whirred
he mustn't have whirred
we mustn't have whirred
you mustn't have whirred
they mustn't have whirred	I mustn't have been whirring
you mustn't have been whirring
he mustn't have been whirring
we mustn't have been whirring
you mustn't have been whirring
they mustn't have been whirring	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I whirr?
must you whirr?
must he whirr?
must we whirr?
must you whirr?
must they whirr? 	must I be whirring?
must you be whirring?
must he be whirring?
must we be whirring?
must you be whirring?
must they be whirring? 	must I have whirred?
must you have whirred?
must he have whirred?
must we have whirred?
must you have whirred?
must they have whirred? 	must I have been whirring?
must you have been whirring?
must he have been whirring?
must we have been whirring?
must you have been whirring?
must they have been whirring? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I whirr?
mustn't you whirr?
mustn't he whirr?
mustn't we whirr?
mustn't you whirr?
mustn't they whirr? 	mustn't I be whirring?
mustn't you be whirring?
mustn't he be whirring?
mustn't we be whirring?
mustn't you be whirring?
mustn't they be whirring? 	mustn't I have whirred?
mustn't you have whirred?
mustn't he have whirred?
mustn't we have whirred?
mustn't you have whirred?
mustn't they have whirred? 	mustn't I have been whirring?
mustn't you have been whirring?
mustn't he have been whirring?
mustn't we have been whirring?
mustn't you have been whirring?
mustn't they have been whirring?