must confer
Regular verb: confer - conferred- conferred

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must confer
you must confer
he must confer
we must confer
you must confer
they must confer 	I must be conferring
you must be conferring
he must be conferring
we must be conferring
you must be conferring
they must be conferring	I must have conferred
you must have conferred
he must have conferred
we must have conferred
you must have conferred
they must have conferred	I must have been conferring
you must have been conferring
he must have been conferring
we must have been conferring
you must have been conferring
they must have been conferring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't confer
you mustn't confer
he mustn't confer
we mustn't confer
you mustn't confer
they mustn't confer 	I mustn't be conferring
you mustn't be conferring
he mustn't be conferring
we mustn't be conferring
you mustn't be conferring
they mustn't be conferring	I mustn't have conferred
you mustn't have conferred
he mustn't have conferred
we mustn't have conferred
you mustn't have conferred
they mustn't have conferred	I mustn't have been conferring
you mustn't have been conferring
he mustn't have been conferring
we mustn't have been conferring
you mustn't have been conferring
they mustn't have been conferring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I confer?
must you confer?
must he confer?
must we confer?
must you confer?
must they confer? 	must I be conferring?
must you be conferring?
must he be conferring?
must we be conferring?
must you be conferring?
must they be conferring? 	must I have conferred?
must you have conferred?
must he have conferred?
must we have conferred?
must you have conferred?
must they have conferred? 	must I have been conferring?
must you have been conferring?
must he have been conferring?
must we have been conferring?
must you have been conferring?
must they have been conferring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I confer?
mustn't you confer?
mustn't he confer?
mustn't we confer?
mustn't you confer?
mustn't they confer? 	mustn't I be conferring?
mustn't you be conferring?
mustn't he be conferring?
mustn't we be conferring?
mustn't you be conferring?
mustn't they be conferring? 	mustn't I have conferred?
mustn't you have conferred?
mustn't he have conferred?
mustn't we have conferred?
mustn't you have conferred?
mustn't they have conferred? 	mustn't I have been conferring?
mustn't you have been conferring?
mustn't he have been conferring?
mustn't we have been conferring?
mustn't you have been conferring?
mustn't they have been conferring?