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