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 mustn't forfeit you mustn't forfeit he mustn't forfeit we mustn't forfeit you mustn't forfeit they mustn't forfeit	I mustn't be forfeiting you mustn't be forfeiting he mustn't be forfeiting we mustn't be forfeiting you mustn't be forfeiting they mustn't be forfeiting
Perfect	V-ing perfect
I mustn't have forfeited you mustn't have forfeited he mustn't have forfeited we mustn't have forfeited you mustn't have forfeited they mustn't have forfeited	I mustn't have been forfeiting you mustn't have been forfeiting he mustn't have been forfeiting we mustn't have been forfeiting you mustn't have been forfeiting they mustn't 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
mustn't I forfeit? mustn't you forfeit? mustn't he forfeit? mustn't we forfeit? mustn't you forfeit? mustn't they forfeit?	mustn't I be forfeiting? mustn't you be forfeiting? mustn't he be forfeiting? mustn't we be forfeiting? mustn't you be forfeiting? mustn't they be forfeiting?
Perfect	V-ing perfect
mustn't I have forfeited? mustn't you have forfeited? mustn't he have forfeited? mustn't we have forfeited? mustn't you have forfeited? mustn't they have forfeited?	mustn't I have been forfeiting? mustn't you have been forfeiting? mustn't he have been forfeiting? mustn't we have been forfeiting? mustn't you have been forfeiting? mustn't they have been forfeiting?