must digress
Regular verb: digress - digressed- digressed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must digress
you must digress
he must digress
we must digress
you must digress
they must digress 	I must be digressing
you must be digressing
he must be digressing
we must be digressing
you must be digressing
they must be digressing	I must have digressed
you must have digressed
he must have digressed
we must have digressed
you must have digressed
they must have digressed	I must have been digressing
you must have been digressing
he must have been digressing
we must have been digressing
you must have been digressing
they must have been digressing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't digress
you mustn't digress
he mustn't digress
we mustn't digress
you mustn't digress
they mustn't digress 	I mustn't be digressing
you mustn't be digressing
he mustn't be digressing
we mustn't be digressing
you mustn't be digressing
they mustn't be digressing	I mustn't have digressed
you mustn't have digressed
he mustn't have digressed
we mustn't have digressed
you mustn't have digressed
they mustn't have digressed	I mustn't have been digressing
you mustn't have been digressing
he mustn't have been digressing
we mustn't have been digressing
you mustn't have been digressing
they mustn't have been digressing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I digress?
must you digress?
must he digress?
must we digress?
must you digress?
must they digress? 	must I be digressing?
must you be digressing?
must he be digressing?
must we be digressing?
must you be digressing?
must they be digressing? 	must I have digressed?
must you have digressed?
must he have digressed?
must we have digressed?
must you have digressed?
must they have digressed? 	must I have been digressing?
must you have been digressing?
must he have been digressing?
must we have been digressing?
must you have been digressing?
must they have been digressing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I digress?
mustn't you digress?
mustn't he digress?
mustn't we digress?
mustn't you digress?
mustn't they digress? 	mustn't I be digressing?
mustn't you be digressing?
mustn't he be digressing?
mustn't we be digressing?
mustn't you be digressing?
mustn't they be digressing? 	mustn't I have digressed?
mustn't you have digressed?
mustn't he have digressed?
mustn't we have digressed?
mustn't you have digressed?
mustn't they have digressed? 	mustn't I have been digressing?
mustn't you have been digressing?
mustn't he have been digressing?
mustn't we have been digressing?
mustn't you have been digressing?
mustn't they have been digressing?