must mask
Regelmä&szlig;iges Verb: mask - masked- masked

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must mask
you must mask
she must mask
we must mask
you must mask
they must mask 	I must be masking
you must be masking
she must be masking
we must be masking
you must be masking
they must be masking	I must have masked
you must have masked
she must have masked
we must have masked
you must have masked
they must have masked	I must have been masking
you must have been masking
she must have been masking
we must have been masking
you must have been masking
they must have been masking	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't mask
you mustn't mask
she mustn't mask
we mustn't mask
you mustn't mask
they mustn't mask 	I mustn't be masking
you mustn't be masking
she mustn't be masking
we mustn't be masking
you mustn't be masking
they mustn't be masking	I mustn't have masked
you mustn't have masked
she mustn't have masked
we mustn't have masked
you mustn't have masked
they mustn't have masked	I mustn't have been masking
you mustn't have been masking
she mustn't have been masking
we mustn't have been masking
you mustn't have been masking
they mustn't have been masking	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I mask?
must you mask?
must she mask?
must we mask?
must you mask?
must they mask? 	must I be masking?
must you be masking?
must she be masking?
must we be masking?
must you be masking?
must they be masking? 	must I have masked?
must you have masked?
must she have masked?
must we have masked?
must you have masked?
must they have masked? 	must I have been masking?
must you have been masking?
must she have been masking?
must we have been masking?
must you have been masking?
must they have been masking? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I mask?
mustn't you mask?
mustn't she mask?
mustn't we mask?
mustn't you mask?
mustn't they mask? 	mustn't I be masking?
mustn't you be masking?
mustn't she be masking?
mustn't we be masking?
mustn't you be masking?
mustn't they be masking? 	mustn't I have masked?
mustn't you have masked?
mustn't she have masked?
mustn't we have masked?
mustn't you have masked?
mustn't they have masked? 	mustn't I have been masking?
mustn't you have been masking?
mustn't she have been masking?
mustn't we have been masking?
mustn't you have been masking?
mustn't they have been masking?