Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must faint faint you must faint faint he must faint faint we must faint faint you must faint faint they must faint faint
V-ing form
I must be faint fainting you must be faint fainting he must be faint fainting we must be faint fainting you must be faint fainting they must be faint fainting
Perfect
I must have faint fainted you must have faint fainted he must have faint fainted we must have faint fainted you must have faint fainted they must have faint fainted
V-ing perfect
I must have been faint fainting you must have been faint fainting he must have been faint fainting we must have been faint fainting you must have been faint fainting they must have been faint fainting
Negation
Simple form
I must not faint faint you must not faint faint he must not faint faint we must not faint faint you must not faint faint they must not faint faint
V-ing form
I must not be faint fainting you must not be faint fainting he must not be faint fainting we must not be faint fainting you must not be faint fainting they must not be faint fainting
Perfect
I must not have faint fainted you must not have faint fainted he must not have faint fainted we must not have faint fainted you must not have faint fainted they must not have faint fainted
V-ing perfect
I must not have been faint fainting you must not have been faint fainting he must not have been faint fainting we must not have been faint fainting you must not have been faint fainting they must not have been faint fainting
Interrogative form
Simple form
must I faint faint? must you faint faint? must he faint faint? must we faint faint? must you faint faint? must they faint faint?
V-ing form
must I be faint fainting? must you be faint fainting? must he be faint fainting? must we be faint fainting? must you be faint fainting? must they be faint fainting?
Perfect
must I have faint fainted? must you have faint fainted? must he have faint fainted? must we have faint fainted? must you have faint fainted? must they have faint fainted?
V-ing perfect
must I have been faint fainting? must you have been faint fainting? must he have been faint fainting? must we have been faint fainting? must you have been faint fainting? must they have been faint fainting?
Interro-negative form
Simple form
must I not faint faint? must you not faint faint? must he not faint faint? must we not faint faint? must you not faint faint? must they not faint faint?
V-ing form
must I not be faint fainting? must you not be faint fainting? must he not be faint fainting? must we not be faint fainting? must you not be faint fainting? must they not be faint fainting?
Perfect
must I not have faint fainted? must you not have faint fainted? must he not have faint fainted? must we not have faint fainted? must you not have faint fainted? must they not have faint fainted?
V-ing perfect
must I not have been faint fainting? must you not have been faint fainting? must he not have been faint fainting? must we not have been faint fainting? must you not have been faint fainting? must they not have been faint fainting?