must congress
Regular verb: congress - congressed- congressed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must congress
you must congress
he must congress
we must congress
you must congress
they must congress 	I must be congressing
you must be congressing
he must be congressing
we must be congressing
you must be congressing
they must be congressing	I must have congressed
you must have congressed
he must have congressed
we must have congressed
you must have congressed
they must have congressed	I must have been congressing
you must have been congressing
he must have been congressing
we must have been congressing
you must have been congressing
they must have been congressing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't congress
you mustn't congress
he mustn't congress
we mustn't congress
you mustn't congress
they mustn't congress 	I mustn't be congressing
you mustn't be congressing
he mustn't be congressing
we mustn't be congressing
you mustn't be congressing
they mustn't be congressing	I mustn't have congressed
you mustn't have congressed
he mustn't have congressed
we mustn't have congressed
you mustn't have congressed
they mustn't have congressed	I mustn't have been congressing
you mustn't have been congressing
he mustn't have been congressing
we mustn't have been congressing
you mustn't have been congressing
they mustn't have been congressing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I congress?
must you congress?
must he congress?
must we congress?
must you congress?
must they congress? 	must I be congressing?
must you be congressing?
must he be congressing?
must we be congressing?
must you be congressing?
must they be congressing? 	must I have congressed?
must you have congressed?
must he have congressed?
must we have congressed?
must you have congressed?
must they have congressed? 	must I have been congressing?
must you have been congressing?
must he have been congressing?
must we have been congressing?
must you have been congressing?
must they have been congressing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I congress?
mustn't you congress?
mustn't he congress?
mustn't we congress?
mustn't you congress?
mustn't they congress? 	mustn't I be congressing?
mustn't you be congressing?
mustn't he be congressing?
mustn't we be congressing?
mustn't you be congressing?
mustn't they be congressing? 	mustn't I have congressed?
mustn't you have congressed?
mustn't he have congressed?
mustn't we have congressed?
mustn't you have congressed?
mustn't they have congressed? 	mustn't I have been congressing?
mustn't you have been congressing?
mustn't he have been congressing?
mustn't we have been congressing?
mustn't you have been congressing?
mustn't they have been congressing?