must confer
Verbo regular: confer - conferred- conferred

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not confer
you must not confer
she must not confer
we must not confer
you must not confer
they must not confer 	I must not be conferring
you must not be conferring
she must not be conferring
we must not be conferring
you must not be conferring
they must not be conferring	I must not have conferred
you must not have conferred
she must not have conferred
we must not have conferred
you must not have conferred
they must not have conferred	I must not have been conferring
you must not have been conferring
she must not have been conferring
we must not have been conferring
you must not have been conferring
they must not have been conferring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not confer?
must you not confer?
must she not confer?
must we not confer?
must you not confer?
must they not confer? 	must I not be conferring?
must you not be conferring?
must she not be conferring?
must we not be conferring?
must you not be conferring?
must they not be conferring? 	must I not have conferred?
must you not have conferred?
must she not have conferred?
must we not have conferred?
must you not have conferred?
must they not have conferred? 	must I not have been conferring?
must you not have been conferring?
must she not have been conferring?
must we not have been conferring?
must you not have been conferring?
must they not have been conferring?