must steam
Verbe régulier : steam - steamed- steamed
Traduction française : (faire) cuire à la vapeur - fumer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must steam
you must steam
he must steam
we must steam
you must steam
they must steam 	I must be steaming
you must be steaming
he must be steaming
we must be steaming
you must be steaming
they must be steaming	I must have steamed
you must have steamed
he must have steamed
we must have steamed
you must have steamed
they must have steamed	I must have been steaming
you must have been steaming
he must have been steaming
we must have been steaming
you must have been steaming
they must have been steaming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't steam
you mustn't steam
he mustn't steam
we mustn't steam
you mustn't steam
they mustn't steam 	I mustn't be steaming
you mustn't be steaming
he mustn't be steaming
we mustn't be steaming
you mustn't be steaming
they mustn't be steaming	I mustn't have steamed
you mustn't have steamed
he mustn't have steamed
we mustn't have steamed
you mustn't have steamed
they mustn't have steamed	I mustn't have been steaming
you mustn't have been steaming
he mustn't have been steaming
we mustn't have been steaming
you mustn't have been steaming
they mustn't have been steaming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I steam?
must you steam?
must he steam?
must we steam?
must you steam?
must they steam? 	must I be steaming?
must you be steaming?
must he be steaming?
must we be steaming?
must you be steaming?
must they be steaming? 	must I have steamed?
must you have steamed?
must he have steamed?
must we have steamed?
must you have steamed?
must they have steamed? 	must I have been steaming?
must you have been steaming?
must he have been steaming?
must we have been steaming?
must you have been steaming?
must they have been steaming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I steam?
mustn't you steam?
mustn't he steam?
mustn't we steam?
mustn't you steam?
mustn't they steam? 	mustn't I be steaming?
mustn't you be steaming?
mustn't he be steaming?
mustn't we be steaming?
mustn't you be steaming?
mustn't they be steaming? 	mustn't I have steamed?
mustn't you have steamed?
mustn't he have steamed?
mustn't we have steamed?
mustn't you have steamed?
mustn't they have steamed? 	mustn't I have been steaming?
mustn't you have been steaming?
mustn't he have been steaming?
mustn't we have been steaming?
mustn't you have been steaming?
mustn't they have been steaming?