English verb conjugation
MUST GONG

Regular verb: gong - gonged - gonged

Affirmation

Simple form	V-ing form
I must gong you must gong he must gong we must gong you must gong they must gong	I must be gonging you must be gonging he must be gonging we must be gonging you must be gonging they must be gonging
Perfect	V-ing perfect
I must have gonged you must have gonged he must have gonged we must have gonged you must have gonged they must have gonged	I must have been gonging you must have been gonging he must have been gonging we must have been gonging you must have been gonging they must have been gonging

Negation

Simple form	V-ing form
I must not gong you must not gong he must not gong we must not gong you must not gong they must not gong	I must not be gonging you must not be gonging he must not be gonging we must not be gonging you must not be gonging they must not be gonging
Perfect	V-ing perfect
I must not have gonged you must not have gonged he must not have gonged we must not have gonged you must not have gonged they must not have gonged	I must not have been gonging you must not have been gonging he must not have been gonging we must not have been gonging you must not have been gonging they must not have been gonging

Interrogative form

Simple form	V-ing form
must I gong? must you gong? must he gong? must we gong? must you gong? must they gong?	must I be gonging? must you be gonging? must he be gonging? must we be gonging? must you be gonging? must they be gonging?
Perfect	V-ing perfect
must I have gonged? must you have gonged? must he have gonged? must we have gonged? must you have gonged? must they have gonged?	must I have been gonging? must you have been gonging? must he have been gonging? must we have been gonging? must you have been gonging? must they have been gonging?

Interro-negative form

Simple form	V-ing form
must I not gong? must you not gong? must he not gong? must we not gong? must you not gong? must they not gong?	must I not be gonging? must you not be gonging? must he not be gonging? must we not be gonging? must you not be gonging? must they not be gonging?
Perfect	V-ing perfect
must I not have gonged? must you not have gonged? must he not have gonged? must we not have gonged? must you not have gonged? must they not have gonged?	must I not have been gonging? must you not have been gonging? must he not have been gonging? must we not have been gonging? must you not have been gonging? must they not have been gonging?