must gong
Verbe régulier : gong - gonged- gonged

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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	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	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't gong
you mustn't gong
he mustn't gong
we mustn't gong
you mustn't gong
they mustn't gong 	I mustn't be gonging
you mustn't be gonging
he mustn't be gonging
we mustn't be gonging
you mustn't be gonging
they mustn't be gonging	I mustn't have gonged
you mustn't have gonged
he mustn't have gonged
we mustn't have gonged
you mustn't have gonged
they mustn't have gonged	I mustn't have been gonging
you mustn't have been gonging
he mustn't have been gonging
we mustn't have been gonging
you mustn't have been gonging
they mustn't have been gonging	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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? 	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? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I gong?
mustn't you gong?
mustn't he gong?
mustn't we gong?
mustn't you gong?
mustn't they gong? 	mustn't I be gonging?
mustn't you be gonging?
mustn't he be gonging?
mustn't we be gonging?
mustn't you be gonging?
mustn't they be gonging? 	mustn't I have gonged?
mustn't you have gonged?
mustn't he have gonged?
mustn't we have gonged?
mustn't you have gonged?
mustn't they have gonged? 	mustn't I have been gonging?
mustn't you have been gonging?
mustn't he have been gonging?
mustn't we have been gonging?
mustn't you have been gonging?
mustn't they have been gonging?