must retrogress
Regelmä&szlig;iges Verb: retrogress - retrogressed- retrogressed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must retrogress
you must retrogress
he must retrogress
we must retrogress
you must retrogress
they must retrogress 	I must be retrogressing
you must be retrogressing
he must be retrogressing
we must be retrogressing
you must be retrogressing
they must be retrogressing	I must have retrogressed
you must have retrogressed
he must have retrogressed
we must have retrogressed
you must have retrogressed
they must have retrogressed	I must have been retrogressing
you must have been retrogressing
he must have been retrogressing
we must have been retrogressing
you must have been retrogressing
they must have been retrogressing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I mustn't retrogress
you mustn't retrogress
he mustn't retrogress
we mustn't retrogress
you mustn't retrogress
they mustn't retrogress 	I mustn't be retrogressing
you mustn't be retrogressing
he mustn't be retrogressing
we mustn't be retrogressing
you mustn't be retrogressing
they mustn't be retrogressing	I mustn't have retrogressed
you mustn't have retrogressed
he mustn't have retrogressed
we mustn't have retrogressed
you mustn't have retrogressed
they mustn't have retrogressed	I mustn't have been retrogressing
you mustn't have been retrogressing
he mustn't have been retrogressing
we mustn't have been retrogressing
you mustn't have been retrogressing
they mustn't have been retrogressing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I retrogress?
must you retrogress?
must he retrogress?
must we retrogress?
must you retrogress?
must they retrogress? 	must I be retrogressing?
must you be retrogressing?
must he be retrogressing?
must we be retrogressing?
must you be retrogressing?
must they be retrogressing? 	must I have retrogressed?
must you have retrogressed?
must he have retrogressed?
must we have retrogressed?
must you have retrogressed?
must they have retrogressed? 	must I have been retrogressing?
must you have been retrogressing?
must he have been retrogressing?
must we have been retrogressing?
must you have been retrogressing?
must they have been retrogressing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
mustn't I retrogress?
mustn't you retrogress?
mustn't he retrogress?
mustn't we retrogress?
mustn't you retrogress?
mustn't they retrogress? 	mustn't I be retrogressing?
mustn't you be retrogressing?
mustn't he be retrogressing?
mustn't we be retrogressing?
mustn't you be retrogressing?
mustn't they be retrogressing? 	mustn't I have retrogressed?
mustn't you have retrogressed?
mustn't he have retrogressed?
mustn't we have retrogressed?
mustn't you have retrogressed?
mustn't they have retrogressed? 	mustn't I have been retrogressing?
mustn't you have been retrogressing?
mustn't he have been retrogressing?
mustn't we have been retrogressing?
mustn't you have been retrogressing?
mustn't they have been retrogressing?