must whiten
Regelmä&szlig;iges Verb: whiten - whitened- whitened

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must whiten
you must whiten
he must whiten
we must whiten
you must whiten
they must whiten 	I must be whitening
you must be whitening
he must be whitening
we must be whitening
you must be whitening
they must be whitening	I must have whitened
you must have whitened
he must have whitened
we must have whitened
you must have whitened
they must have whitened	I must have been whitening
you must have been whitening
he must have been whitening
we must have been whitening
you must have been whitening
they must have been whitening	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't whiten
you mustn't whiten
he mustn't whiten
we mustn't whiten
you mustn't whiten
they mustn't whiten 	I mustn't be whitening
you mustn't be whitening
he mustn't be whitening
we mustn't be whitening
you mustn't be whitening
they mustn't be whitening	I mustn't have whitened
you mustn't have whitened
he mustn't have whitened
we mustn't have whitened
you mustn't have whitened
they mustn't have whitened	I mustn't have been whitening
you mustn't have been whitening
he mustn't have been whitening
we mustn't have been whitening
you mustn't have been whitening
they mustn't have been whitening	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I whiten?
must you whiten?
must he whiten?
must we whiten?
must you whiten?
must they whiten? 	must I be whitening?
must you be whitening?
must he be whitening?
must we be whitening?
must you be whitening?
must they be whitening? 	must I have whitened?
must you have whitened?
must he have whitened?
must we have whitened?
must you have whitened?
must they have whitened? 	must I have been whitening?
must you have been whitening?
must he have been whitening?
must we have been whitening?
must you have been whitening?
must they have been whitening? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I whiten?
mustn't you whiten?
mustn't he whiten?
mustn't we whiten?
mustn't you whiten?
mustn't they whiten? 	mustn't I be whitening?
mustn't you be whitening?
mustn't he be whitening?
mustn't we be whitening?
mustn't you be whitening?
mustn't they be whitening? 	mustn't I have whitened?
mustn't you have whitened?
mustn't he have whitened?
mustn't we have whitened?
mustn't you have whitened?
mustn't they have whitened? 	mustn't I have been whitening?
mustn't you have been whitening?
mustn't he have been whitening?
mustn't we have been whitening?
mustn't you have been whitening?
mustn't they have been whitening?