must rut
Verbe régulier : rut - rutted- rutted
Traduction française : sillonner - être en rut 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must rut
you must rut
he must rut
we must rut
you must rut
they must rut 	I must be rutting
you must be rutting
he must be rutting
we must be rutting
you must be rutting
they must be rutting	I must have rutted
you must have rutted
he must have rutted
we must have rutted
you must have rutted
they must have rutted	I must have been rutting
you must have been rutting
he must have been rutting
we must have been rutting
you must have been rutting
they must have been rutting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't rut
you mustn't rut
he mustn't rut
we mustn't rut
you mustn't rut
they mustn't rut 	I mustn't be rutting
you mustn't be rutting
he mustn't be rutting
we mustn't be rutting
you mustn't be rutting
they mustn't be rutting	I mustn't have rutted
you mustn't have rutted
he mustn't have rutted
we mustn't have rutted
you mustn't have rutted
they mustn't have rutted	I mustn't have been rutting
you mustn't have been rutting
he mustn't have been rutting
we mustn't have been rutting
you mustn't have been rutting
they mustn't have been rutting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I rut?
must you rut?
must he rut?
must we rut?
must you rut?
must they rut? 	must I be rutting?
must you be rutting?
must he be rutting?
must we be rutting?
must you be rutting?
must they be rutting? 	must I have rutted?
must you have rutted?
must he have rutted?
must we have rutted?
must you have rutted?
must they have rutted? 	must I have been rutting?
must you have been rutting?
must he have been rutting?
must we have been rutting?
must you have been rutting?
must they have been rutting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I rut?
mustn't you rut?
mustn't he rut?
mustn't we rut?
mustn't you rut?
mustn't they rut? 	mustn't I be rutting?
mustn't you be rutting?
mustn't he be rutting?
mustn't we be rutting?
mustn't you be rutting?
mustn't they be rutting? 	mustn't I have rutted?
mustn't you have rutted?
mustn't he have rutted?
mustn't we have rutted?
mustn't you have rutted?
mustn't they have rutted? 	mustn't I have been rutting?
mustn't you have been rutting?
mustn't he have been rutting?
mustn't we have been rutting?
mustn't you have been rutting?
mustn't they have been rutting?