must decay
Regelmä&szlig;iges Verb: decay - decayed- decayed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must decay
you must decay
he must decay
we must decay
you must decay
they must decay 	I must be decaying
you must be decaying
he must be decaying
we must be decaying
you must be decaying
they must be decaying	I must have decayed
you must have decayed
he must have decayed
we must have decayed
you must have decayed
they must have decayed	I must have been decaying
you must have been decaying
he must have been decaying
we must have been decaying
you must have been decaying
they must have been decaying	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't decay
you mustn't decay
he mustn't decay
we mustn't decay
you mustn't decay
they mustn't decay 	I mustn't be decaying
you mustn't be decaying
he mustn't be decaying
we mustn't be decaying
you mustn't be decaying
they mustn't be decaying	I mustn't have decayed
you mustn't have decayed
he mustn't have decayed
we mustn't have decayed
you mustn't have decayed
they mustn't have decayed	I mustn't have been decaying
you mustn't have been decaying
he mustn't have been decaying
we mustn't have been decaying
you mustn't have been decaying
they mustn't have been decaying	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I decay?
must you decay?
must he decay?
must we decay?
must you decay?
must they decay? 	must I be decaying?
must you be decaying?
must he be decaying?
must we be decaying?
must you be decaying?
must they be decaying? 	must I have decayed?
must you have decayed?
must he have decayed?
must we have decayed?
must you have decayed?
must they have decayed? 	must I have been decaying?
must you have been decaying?
must he have been decaying?
must we have been decaying?
must you have been decaying?
must they have been decaying? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I decay?
mustn't you decay?
mustn't he decay?
mustn't we decay?
mustn't you decay?
mustn't they decay? 	mustn't I be decaying?
mustn't you be decaying?
mustn't he be decaying?
mustn't we be decaying?
mustn't you be decaying?
mustn't they be decaying? 	mustn't I have decayed?
mustn't you have decayed?
mustn't he have decayed?
mustn't we have decayed?
mustn't you have decayed?
mustn't they have decayed? 	mustn't I have been decaying?
mustn't you have been decaying?
mustn't he have been decaying?
mustn't we have been decaying?
mustn't you have been decaying?
mustn't they have been decaying?