English verb conjugation
MUST BENEFIT

Regular verb: benefit - benefited - benefited

Affirmation

Simple form	V-ing form
I must benefit you must benefit she must benefit we must benefit you must benefit they must benefit	I must be benefiting you must be benefiting she must be benefiting we must be benefiting you must be benefiting they must be benefiting
Perfect	V-ing perfect
I must have benefited you must have benefited she must have benefited we must have benefited you must have benefited they must have benefited	I must have been benefiting you must have been benefiting she must have been benefiting we must have been benefiting you must have been benefiting they must have been benefiting

Negation

Simple form	V-ing form
I must not benefit you must not benefit she must not benefit we must not benefit you must not benefit they must not benefit	I must not be benefiting you must not be benefiting she must not be benefiting we must not be benefiting you must not be benefiting they must not be benefiting
Perfect	V-ing perfect
I must not have benefited you must not have benefited she must not have benefited we must not have benefited you must not have benefited they must not have benefited	I must not have been benefiting you must not have been benefiting she must not have been benefiting we must not have been benefiting you must not have been benefiting they must not have been benefiting

Interrogative form

Simple form	V-ing form
must I benefit? must you benefit? must she benefit? must we benefit? must you benefit? must they benefit?	must I be benefiting? must you be benefiting? must she be benefiting? must we be benefiting? must you be benefiting? must they be benefiting?
Perfect	V-ing perfect
must I have benefited? must you have benefited? must she have benefited? must we have benefited? must you have benefited? must they have benefited?	must I have been benefiting? must you have been benefiting? must she have been benefiting? must we have been benefiting? must you have been benefiting? must they have been benefiting?

Interro-negative form

Simple form	V-ing form
must I not benefit? must you not benefit? must she not benefit? must we not benefit? must you not benefit? must they not benefit?	must I not be benefiting? must you not be benefiting? must she not be benefiting? must we not be benefiting? must you not be benefiting? must they not be benefiting?
Perfect	V-ing perfect
must I not have benefited? must you not have benefited? must she not have benefited? must we not have benefited? must you not have benefited? must they not have benefited?	must I not have been benefiting? must you not have been benefiting? must she not have been benefiting? must we not have been benefiting? must you not have been benefiting? must they not have been benefiting?