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 must not frostbite
you must not frostbite
he must not frostbite
we must not frostbite
you must not frostbite
they must not frostbite 	I must not be frostbiting
you must not be frostbiting
he must not be frostbiting
we must not be frostbiting
you must not be frostbiting
they must not be frostbiting	I must not have frostbitten
you must not have frostbitten
he must not have frostbitten
we must not have frostbitten
you must not have frostbitten
they must not have frostbitten	I must not have been frostbiting
you must not have been frostbiting
he must not have been frostbiting
we must not have been frostbiting
you must not have been frostbiting
they must not 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 	
must I not frostbite?
must you not frostbite?
must he not frostbite?
must we not frostbite?
must you not frostbite?
must they not frostbite? 	must I not be frostbiting?
must you not be frostbiting?
must he not be frostbiting?
must we not be frostbiting?
must you not be frostbiting?
must they not be frostbiting? 	must I not have frostbitten?
must you not have frostbitten?
must he not have frostbitten?
must we not have frostbitten?
must you not have frostbitten?
must they not have frostbitten? 	must I not have been frostbiting?
must you not have been frostbiting?
must he not have been frostbiting?
must we not have been frostbiting?
must you not have been frostbiting?
must they not have been frostbiting?