English verb conjugation
MUST FORFEIT

Regular verb: forfeit - forfeited - forfeited

Affirmation

Simple form	V-ing form
I must forfeit you must forfeit he must forfeit we must forfeit you must forfeit they must forfeit	I must be forfeiting you must be forfeiting he must be forfeiting we must be forfeiting you must be forfeiting they must be forfeiting
Perfect	V-ing perfect
I must have forfeited you must have forfeited he must have forfeited we must have forfeited you must have forfeited they must have forfeited	I must have been forfeiting you must have been forfeiting he must have been forfeiting we must have been forfeiting you must have been forfeiting they must have been forfeiting

Negation

Simple form	V-ing form
I must not forfeit you must not forfeit he must not forfeit we must not forfeit you must not forfeit they must not forfeit	I must not be forfeiting you must not be forfeiting he must not be forfeiting we must not be forfeiting you must not be forfeiting they must not be forfeiting
Perfect	V-ing perfect
I must not have forfeited you must not have forfeited he must not have forfeited we must not have forfeited you must not have forfeited they must not have forfeited	I must not have been forfeiting you must not have been forfeiting he must not have been forfeiting we must not have been forfeiting you must not have been forfeiting they must not have been forfeiting

Interrogative form

Simple form	V-ing form
must I forfeit? must you forfeit? must he forfeit? must we forfeit? must you forfeit? must they forfeit?	must I be forfeiting? must you be forfeiting? must he be forfeiting? must we be forfeiting? must you be forfeiting? must they be forfeiting?
Perfect	V-ing perfect
must I have forfeited? must you have forfeited? must he have forfeited? must we have forfeited? must you have forfeited? must they have forfeited?	must I have been forfeiting? must you have been forfeiting? must he have been forfeiting? must we have been forfeiting? must you have been forfeiting? must they have been forfeiting?

Interro-negative form

Simple form	V-ing form
must I not forfeit? must you not forfeit? must he not forfeit? must we not forfeit? must you not forfeit? must they not forfeit?	must I not be forfeiting? must you not be forfeiting? must he not be forfeiting? must we not be forfeiting? must you not be forfeiting? must they not be forfeiting?
Perfect	V-ing perfect
must I not have forfeited? must you not have forfeited? must he not have forfeited? must we not have forfeited? must you not have forfeited? must they not have forfeited?	must I not have been forfeiting? must you not have been forfeiting? must he not have been forfeiting? must we not have been forfeiting? must you not have been forfeiting? must they not have been forfeiting?