must frostbite
Verbe irrégulier : frostbite - frostbit- frostbitten

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must frostbite
you must frostbite
he must frostbite
we must frostbite
you must frostbite
they must frostbite 	I must be frostbiting
you must be frostbiting
he must be frostbiting
we must be frostbiting
you must be frostbiting
they must be frostbiting	I must have frostbitten
you must have frostbitten
he must have frostbitten
we must have frostbitten
you must have frostbitten
they must have frostbitten	I must have been frostbiting
you must have been frostbiting
he must have been frostbiting
we must have been frostbiting
you must have been frostbiting
they must have been frostbiting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't frostbite
you mustn't frostbite
he mustn't frostbite
we mustn't frostbite
you mustn't frostbite
they mustn't frostbite 	I mustn't be frostbiting
you mustn't be frostbiting
he mustn't be frostbiting
we mustn't be frostbiting
you mustn't be frostbiting
they mustn't be frostbiting	I mustn't have frostbitten
you mustn't have frostbitten
he mustn't have frostbitten
we mustn't have frostbitten
you mustn't have frostbitten
they mustn't have frostbitten	I mustn't have been frostbiting
you mustn't have been frostbiting
he mustn't have been frostbiting
we mustn't have been frostbiting
you mustn't have been frostbiting
they mustn't have been frostbiting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I frostbite?
must you frostbite?
must he frostbite?
must we frostbite?
must you frostbite?
must they frostbite? 	must I be frostbiting?
must you be frostbiting?
must he be frostbiting?
must we be frostbiting?
must you be frostbiting?
must they be frostbiting? 	must I have frostbitten?
must you have frostbitten?
must he have frostbitten?
must we have frostbitten?
must you have frostbitten?
must they have frostbitten? 	must I have been frostbiting?
must you have been frostbiting?
must he have been frostbiting?
must we have been frostbiting?
must you have been frostbiting?
must they have been frostbiting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I frostbite?
mustn't you frostbite?
mustn't he frostbite?
mustn't we frostbite?
mustn't you frostbite?
mustn't they frostbite? 	mustn't I be frostbiting?
mustn't you be frostbiting?
mustn't he be frostbiting?
mustn't we be frostbiting?
mustn't you be frostbiting?
mustn't they be frostbiting? 	mustn't I have frostbitten?
mustn't you have frostbitten?
mustn't he have frostbitten?
mustn't we have frostbitten?
mustn't you have frostbitten?
mustn't they have frostbitten? 	mustn't I have been frostbiting?
mustn't you have been frostbiting?
mustn't he have been frostbiting?
mustn't we have been frostbiting?
mustn't you have been frostbiting?
mustn't they have been frostbiting?