English verb conjugation
MUST FRIT

Regular verb: frit - frited - frited

Affirmation

Simple form	V-ing form
I must frit you must frit he must frit we must frit you must frit they must frit	I must be friting you must be friting he must be friting we must be friting you must be friting they must be friting
Perfect	V-ing perfect
I must have frited you must have frited he must have frited we must have frited you must have frited they must have frited	I must have been friting you must have been friting he must have been friting we must have been friting you must have been friting they must have been friting

Negation

Simple form	V-ing form
I must not frit you must not frit he must not frit we must not frit you must not frit they must not frit	I must not be friting you must not be friting he must not be friting we must not be friting you must not be friting they must not be friting
Perfect	V-ing perfect
I must not have frited you must not have frited he must not have frited we must not have frited you must not have frited they must not have frited	I must not have been friting you must not have been friting he must not have been friting we must not have been friting you must not have been friting they must not have been friting

Interrogative form

Simple form	V-ing form
must I frit? must you frit? must he frit? must we frit? must you frit? must they frit?	must I be friting? must you be friting? must he be friting? must we be friting? must you be friting? must they be friting?
Perfect	V-ing perfect
must I have frited? must you have frited? must he have frited? must we have frited? must you have frited? must they have frited?	must I have been friting? must you have been friting? must he have been friting? must we have been friting? must you have been friting? must they have been friting?

Interro-negative form

Simple form	V-ing form
must I not frit? must you not frit? must he not frit? must we not frit? must you not frit? must they not frit?	must I not be friting? must you not be friting? must he not be friting? must we not be friting? must you not be friting? must they not be friting?
Perfect	V-ing perfect
must I not have frited? must you not have frited? must he not have frited? must we not have frited? must you not have frited? must they not have frited?	must I not have been friting? must you not have been friting? must he not have been friting? must we not have been friting? must you not have been friting? must they not have been friting?