must derive
Regelmä&szlig;iges Verb: derive - derived- derived

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must derive
you must derive
he must derive
we must derive
you must derive
they must derive 	I must be deriving
you must be deriving
he must be deriving
we must be deriving
you must be deriving
they must be deriving	I must have derived
you must have derived
he must have derived
we must have derived
you must have derived
they must have derived	I must have been deriving
you must have been deriving
he must have been deriving
we must have been deriving
you must have been deriving
they must have been deriving	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't derive
you mustn't derive
he mustn't derive
we mustn't derive
you mustn't derive
they mustn't derive 	I mustn't be deriving
you mustn't be deriving
he mustn't be deriving
we mustn't be deriving
you mustn't be deriving
they mustn't be deriving	I mustn't have derived
you mustn't have derived
he mustn't have derived
we mustn't have derived
you mustn't have derived
they mustn't have derived	I mustn't have been deriving
you mustn't have been deriving
he mustn't have been deriving
we mustn't have been deriving
you mustn't have been deriving
they mustn't have been deriving	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I derive?
must you derive?
must he derive?
must we derive?
must you derive?
must they derive? 	must I be deriving?
must you be deriving?
must he be deriving?
must we be deriving?
must you be deriving?
must they be deriving? 	must I have derived?
must you have derived?
must he have derived?
must we have derived?
must you have derived?
must they have derived? 	must I have been deriving?
must you have been deriving?
must he have been deriving?
must we have been deriving?
must you have been deriving?
must they have been deriving? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I derive?
mustn't you derive?
mustn't he derive?
mustn't we derive?
mustn't you derive?
mustn't they derive? 	mustn't I be deriving?
mustn't you be deriving?
mustn't he be deriving?
mustn't we be deriving?
mustn't you be deriving?
mustn't they be deriving? 	mustn't I have derived?
mustn't you have derived?
mustn't he have derived?
mustn't we have derived?
mustn't you have derived?
mustn't they have derived? 	mustn't I have been deriving?
mustn't you have been deriving?
mustn't he have been deriving?
mustn't we have been deriving?
mustn't you have been deriving?
mustn't they have been deriving?