must clean
Regelmä&szlig;iges Verb: clean - cleaned- cleaned

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must clean
you must clean
she must clean
we must clean
you must clean
they must clean 	I must be cleaning
you must be cleaning
she must be cleaning
we must be cleaning
you must be cleaning
they must be cleaning	I must have cleaned
you must have cleaned
she must have cleaned
we must have cleaned
you must have cleaned
they must have cleaned	I must have been cleaning
you must have been cleaning
she must have been cleaning
we must have been cleaning
you must have been cleaning
they must have been cleaning	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't clean
you mustn't clean
she mustn't clean
we mustn't clean
you mustn't clean
they mustn't clean 	I mustn't be cleaning
you mustn't be cleaning
she mustn't be cleaning
we mustn't be cleaning
you mustn't be cleaning
they mustn't be cleaning	I mustn't have cleaned
you mustn't have cleaned
she mustn't have cleaned
we mustn't have cleaned
you mustn't have cleaned
they mustn't have cleaned	I mustn't have been cleaning
you mustn't have been cleaning
she mustn't have been cleaning
we mustn't have been cleaning
you mustn't have been cleaning
they mustn't have been cleaning	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I clean?
must you clean?
must she clean?
must we clean?
must you clean?
must they clean? 	must I be cleaning?
must you be cleaning?
must she be cleaning?
must we be cleaning?
must you be cleaning?
must they be cleaning? 	must I have cleaned?
must you have cleaned?
must she have cleaned?
must we have cleaned?
must you have cleaned?
must they have cleaned? 	must I have been cleaning?
must you have been cleaning?
must she have been cleaning?
must we have been cleaning?
must you have been cleaning?
must they have been cleaning? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I clean?
mustn't you clean?
mustn't she clean?
mustn't we clean?
mustn't you clean?
mustn't they clean? 	mustn't I be cleaning?
mustn't you be cleaning?
mustn't she be cleaning?
mustn't we be cleaning?
mustn't you be cleaning?
mustn't they be cleaning? 	mustn't I have cleaned?
mustn't you have cleaned?
mustn't she have cleaned?
mustn't we have cleaned?
mustn't you have cleaned?
mustn't they have cleaned? 	mustn't I have been cleaning?
mustn't you have been cleaning?
mustn't she have been cleaning?
mustn't we have been cleaning?
mustn't you have been cleaning?
mustn't they have been cleaning?