must fork
Verbe régulier : fork - forked- forked
Traduction française : fourcher - bifurquer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must fork
you must fork
she must fork
we must fork
you must fork
they must fork 	I must be forking
you must be forking
she must be forking
we must be forking
you must be forking
they must be forking	I must have forked
you must have forked
she must have forked
we must have forked
you must have forked
they must have forked	I must have been forking
you must have been forking
she must have been forking
we must have been forking
you must have been forking
they must have been forking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't fork
you mustn't fork
she mustn't fork
we mustn't fork
you mustn't fork
they mustn't fork 	I mustn't be forking
you mustn't be forking
she mustn't be forking
we mustn't be forking
you mustn't be forking
they mustn't be forking	I mustn't have forked
you mustn't have forked
she mustn't have forked
we mustn't have forked
you mustn't have forked
they mustn't have forked	I mustn't have been forking
you mustn't have been forking
she mustn't have been forking
we mustn't have been forking
you mustn't have been forking
they mustn't have been forking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I fork?
must you fork?
must she fork?
must we fork?
must you fork?
must they fork? 	must I be forking?
must you be forking?
must she be forking?
must we be forking?
must you be forking?
must they be forking? 	must I have forked?
must you have forked?
must she have forked?
must we have forked?
must you have forked?
must they have forked? 	must I have been forking?
must you have been forking?
must she have been forking?
must we have been forking?
must you have been forking?
must they have been forking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I fork?
mustn't you fork?
mustn't she fork?
mustn't we fork?
mustn't you fork?
mustn't they fork? 	mustn't I be forking?
mustn't you be forking?
mustn't she be forking?
mustn't we be forking?
mustn't you be forking?
mustn't they be forking? 	mustn't I have forked?
mustn't you have forked?
mustn't she have forked?
mustn't we have forked?
mustn't you have forked?
mustn't they have forked? 	mustn't I have been forking?
mustn't you have been forking?
mustn't she have been forking?
mustn't we have been forking?
mustn't you have been forking?
mustn't they have been forking?