English verb conjugation
MUST CONFER

Regular verb: confer - conferred - conferred

Affirmation

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