must foam
Verbe régulier : foam - foamed- foamed
Traduction française : mousser - écumer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must foam
you must foam
she must foam
we must foam
you must foam
they must foam 	I must be foaming
you must be foaming
she must be foaming
we must be foaming
you must be foaming
they must be foaming	I must have foamed
you must have foamed
she must have foamed
we must have foamed
you must have foamed
they must have foamed	I must have been foaming
you must have been foaming
she must have been foaming
we must have been foaming
you must have been foaming
they must have been foaming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't foam
you mustn't foam
she mustn't foam
we mustn't foam
you mustn't foam
they mustn't foam 	I mustn't be foaming
you mustn't be foaming
she mustn't be foaming
we mustn't be foaming
you mustn't be foaming
they mustn't be foaming	I mustn't have foamed
you mustn't have foamed
she mustn't have foamed
we mustn't have foamed
you mustn't have foamed
they mustn't have foamed	I mustn't have been foaming
you mustn't have been foaming
she mustn't have been foaming
we mustn't have been foaming
you mustn't have been foaming
they mustn't have been foaming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I foam?
must you foam?
must she foam?
must we foam?
must you foam?
must they foam? 	must I be foaming?
must you be foaming?
must she be foaming?
must we be foaming?
must you be foaming?
must they be foaming? 	must I have foamed?
must you have foamed?
must she have foamed?
must we have foamed?
must you have foamed?
must they have foamed? 	must I have been foaming?
must you have been foaming?
must she have been foaming?
must we have been foaming?
must you have been foaming?
must they have been foaming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I foam?
mustn't you foam?
mustn't she foam?
mustn't we foam?
mustn't you foam?
mustn't they foam? 	mustn't I be foaming?
mustn't you be foaming?
mustn't she be foaming?
mustn't we be foaming?
mustn't you be foaming?
mustn't they be foaming? 	mustn't I have foamed?
mustn't you have foamed?
mustn't she have foamed?
mustn't we have foamed?
mustn't you have foamed?
mustn't they have foamed? 	mustn't I have been foaming?
mustn't you have been foaming?
mustn't she have been foaming?
mustn't we have been foaming?
mustn't you have been foaming?
mustn't they have been foaming?