must underact
Regelmä&szlig;iges Verb: underact - underacted- underacted

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must underact
you must underact
she must underact
we must underact
you must underact
they must underact 	I must be underacting
you must be underacting
she must be underacting
we must be underacting
you must be underacting
they must be underacting	I must have underacted
you must have underacted
she must have underacted
we must have underacted
you must have underacted
they must have underacted	I must have been underacting
you must have been underacting
she must have been underacting
we must have been underacting
you must have been underacting
they must have been underacting	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't underact
you mustn't underact
she mustn't underact
we mustn't underact
you mustn't underact
they mustn't underact 	I mustn't be underacting
you mustn't be underacting
she mustn't be underacting
we mustn't be underacting
you mustn't be underacting
they mustn't be underacting	I mustn't have underacted
you mustn't have underacted
she mustn't have underacted
we mustn't have underacted
you mustn't have underacted
they mustn't have underacted	I mustn't have been underacting
you mustn't have been underacting
she mustn't have been underacting
we mustn't have been underacting
you mustn't have been underacting
they mustn't have been underacting	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I underact?
must you underact?
must she underact?
must we underact?
must you underact?
must they underact? 	must I be underacting?
must you be underacting?
must she be underacting?
must we be underacting?
must you be underacting?
must they be underacting? 	must I have underacted?
must you have underacted?
must she have underacted?
must we have underacted?
must you have underacted?
must they have underacted? 	must I have been underacting?
must you have been underacting?
must she have been underacting?
must we have been underacting?
must you have been underacting?
must they have been underacting? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I underact?
mustn't you underact?
mustn't she underact?
mustn't we underact?
mustn't you underact?
mustn't they underact? 	mustn't I be underacting?
mustn't you be underacting?
mustn't she be underacting?
mustn't we be underacting?
mustn't you be underacting?
mustn't they be underacting? 	mustn't I have underacted?
mustn't you have underacted?
mustn't she have underacted?
mustn't we have underacted?
mustn't you have underacted?
mustn't they have underacted? 	mustn't I have been underacting?
mustn't you have been underacting?
mustn't she have been underacting?
mustn't we have been underacting?
mustn't you have been underacting?
mustn't they have been underacting?