must frown
Regelmä&szlig;iges Verb: frown - frowned- frowned

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must frown
you must frown
she must frown
we must frown
you must frown
they must frown 	I must be frowning
you must be frowning
she must be frowning
we must be frowning
you must be frowning
they must be frowning	I must have frowned
you must have frowned
she must have frowned
we must have frowned
you must have frowned
they must have frowned	I must have been frowning
you must have been frowning
she must have been frowning
we must have been frowning
you must have been frowning
they must have been frowning	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must not frown
you must not frown
she must not frown
we must not frown
you must not frown
they must not frown 	I must not be frowning
you must not be frowning
she must not be frowning
we must not be frowning
you must not be frowning
they must not be frowning	I must not have frowned
you must not have frowned
she must not have frowned
we must not have frowned
you must not have frowned
they must not have frowned	I must not have been frowning
you must not have been frowning
she must not have been frowning
we must not have been frowning
you must not have been frowning
they must not have been frowning	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I frown?
must you frown?
must she frown?
must we frown?
must you frown?
must they frown? 	must I be frowning?
must you be frowning?
must she be frowning?
must we be frowning?
must you be frowning?
must they be frowning? 	must I have frowned?
must you have frowned?
must she have frowned?
must we have frowned?
must you have frowned?
must they have frowned? 	must I have been frowning?
must you have been frowning?
must she have been frowning?
must we have been frowning?
must you have been frowning?
must they have been frowning? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I not frown?
must you not frown?
must she not frown?
must we not frown?
must you not frown?
must they not frown? 	must I not be frowning?
must you not be frowning?
must she not be frowning?
must we not be frowning?
must you not be frowning?
must they not be frowning? 	must I not have frowned?
must you not have frowned?
must she not have frowned?
must we not have frowned?
must you not have frowned?
must they not have frowned? 	must I not have been frowning?
must you not have been frowning?
must she not have been frowning?
must we not have been frowning?
must you not have been frowning?
must they not have been frowning?