must boil
Verbe régulier : boil - boiled- boiled
Traduction française : faire bouillir - bouillir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must boil
you must boil
he must boil
we must boil
you must boil
they must boil 	I must be boiling
you must be boiling
he must be boiling
we must be boiling
you must be boiling
they must be boiling	I must have boiled
you must have boiled
he must have boiled
we must have boiled
you must have boiled
they must have boiled	I must have been boiling
you must have been boiling
he must have been boiling
we must have been boiling
you must have been boiling
they must have been boiling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't boil
you mustn't boil
he mustn't boil
we mustn't boil
you mustn't boil
they mustn't boil 	I mustn't be boiling
you mustn't be boiling
he mustn't be boiling
we mustn't be boiling
you mustn't be boiling
they mustn't be boiling	I mustn't have boiled
you mustn't have boiled
he mustn't have boiled
we mustn't have boiled
you mustn't have boiled
they mustn't have boiled	I mustn't have been boiling
you mustn't have been boiling
he mustn't have been boiling
we mustn't have been boiling
you mustn't have been boiling
they mustn't have been boiling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I boil?
must you boil?
must he boil?
must we boil?
must you boil?
must they boil? 	must I be boiling?
must you be boiling?
must he be boiling?
must we be boiling?
must you be boiling?
must they be boiling? 	must I have boiled?
must you have boiled?
must he have boiled?
must we have boiled?
must you have boiled?
must they have boiled? 	must I have been boiling?
must you have been boiling?
must he have been boiling?
must we have been boiling?
must you have been boiling?
must they have been boiling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I boil?
mustn't you boil?
mustn't he boil?
mustn't we boil?
mustn't you boil?
mustn't they boil? 	mustn't I be boiling?
mustn't you be boiling?
mustn't he be boiling?
mustn't we be boiling?
mustn't you be boiling?
mustn't they be boiling? 	mustn't I have boiled?
mustn't you have boiled?
mustn't he have boiled?
mustn't we have boiled?
mustn't you have boiled?
mustn't they have boiled? 	mustn't I have been boiling?
mustn't you have been boiling?
mustn't he have been boiling?
mustn't we have been boiling?
mustn't you have been boiling?
mustn't they have been boiling?