must ravel
Verbe régulier : ravel - ravelled- ravelled
Traduction française : emmêler - s'emmêler 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must ravel
you must ravel
he must ravel
we must ravel
you must ravel
they must ravel 	I must be ravelling
you must be ravelling
he must be ravelling
we must be ravelling
you must be ravelling
they must be ravelling	I must have ravelled
you must have ravelled
he must have ravelled
we must have ravelled
you must have ravelled
they must have ravelled	I must have been ravelling
you must have been ravelling
he must have been ravelling
we must have been ravelling
you must have been ravelling
they must have been ravelling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't ravel
you mustn't ravel
he mustn't ravel
we mustn't ravel
you mustn't ravel
they mustn't ravel 	I mustn't be ravelling
you mustn't be ravelling
he mustn't be ravelling
we mustn't be ravelling
you mustn't be ravelling
they mustn't be ravelling	I mustn't have ravelled
you mustn't have ravelled
he mustn't have ravelled
we mustn't have ravelled
you mustn't have ravelled
they mustn't have ravelled	I mustn't have been ravelling
you mustn't have been ravelling
he mustn't have been ravelling
we mustn't have been ravelling
you mustn't have been ravelling
they mustn't have been ravelling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I ravel?
must you ravel?
must he ravel?
must we ravel?
must you ravel?
must they ravel? 	must I be ravelling?
must you be ravelling?
must he be ravelling?
must we be ravelling?
must you be ravelling?
must they be ravelling? 	must I have ravelled?
must you have ravelled?
must he have ravelled?
must we have ravelled?
must you have ravelled?
must they have ravelled? 	must I have been ravelling?
must you have been ravelling?
must he have been ravelling?
must we have been ravelling?
must you have been ravelling?
must they have been ravelling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I ravel?
mustn't you ravel?
mustn't he ravel?
mustn't we ravel?
mustn't you ravel?
mustn't they ravel? 	mustn't I be ravelling?
mustn't you be ravelling?
mustn't he be ravelling?
mustn't we be ravelling?
mustn't you be ravelling?
mustn't they be ravelling? 	mustn't I have ravelled?
mustn't you have ravelled?
mustn't he have ravelled?
mustn't we have ravelled?
mustn't you have ravelled?
mustn't they have ravelled? 	mustn't I have been ravelling?
mustn't you have been ravelling?
mustn't he have been ravelling?
mustn't we have been ravelling?
mustn't you have been ravelling?
mustn't they have been ravelling?