must benefice
Regular verb: benefice - beneficed- beneficed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must benefice
you must benefice
he must benefice
we must benefice
you must benefice
they must benefice 	I must be beneficing
you must be beneficing
he must be beneficing
we must be beneficing
you must be beneficing
they must be beneficing	I must have beneficed
you must have beneficed
he must have beneficed
we must have beneficed
you must have beneficed
they must have beneficed	I must have been beneficing
you must have been beneficing
he must have been beneficing
we must have been beneficing
you must have been beneficing
they must have been beneficing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not benefice
you must not benefice
he must not benefice
we must not benefice
you must not benefice
they must not benefice 	I must not be beneficing
you must not be beneficing
he must not be beneficing
we must not be beneficing
you must not be beneficing
they must not be beneficing	I must not have beneficed
you must not have beneficed
he must not have beneficed
we must not have beneficed
you must not have beneficed
they must not have beneficed	I must not have been beneficing
you must not have been beneficing
he must not have been beneficing
we must not have been beneficing
you must not have been beneficing
they must not have been beneficing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I benefice?
must you benefice?
must he benefice?
must we benefice?
must you benefice?
must they benefice? 	must I be beneficing?
must you be beneficing?
must he be beneficing?
must we be beneficing?
must you be beneficing?
must they be beneficing? 	must I have beneficed?
must you have beneficed?
must he have beneficed?
must we have beneficed?
must you have beneficed?
must they have beneficed? 	must I have been beneficing?
must you have been beneficing?
must he have been beneficing?
must we have been beneficing?
must you have been beneficing?
must they have been beneficing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not benefice?
must you not benefice?
must he not benefice?
must we not benefice?
must you not benefice?
must they not benefice? 	must I not be beneficing?
must you not be beneficing?
must he not be beneficing?
must we not be beneficing?
must you not be beneficing?
must they not be beneficing? 	must I not have beneficed?
must you not have beneficed?
must he not have beneficed?
must we not have beneficed?
must you not have beneficed?
must they not have beneficed? 	must I not have been beneficing?
must you not have been beneficing?
must he not have been beneficing?
must we not have been beneficing?
must you not have been beneficing?
must they not have been beneficing?