must book
Verbe régulier : book - booked- booked
Traduction française : réserver 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must book
you must book
he must book
we must book
you must book
they must book 	I must be booking
you must be booking
he must be booking
we must be booking
you must be booking
they must be booking	I must have booked
you must have booked
he must have booked
we must have booked
you must have booked
they must have booked	I must have been booking
you must have been booking
he must have been booking
we must have been booking
you must have been booking
they must have been booking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't book
you mustn't book
he mustn't book
we mustn't book
you mustn't book
they mustn't book 	I mustn't be booking
you mustn't be booking
he mustn't be booking
we mustn't be booking
you mustn't be booking
they mustn't be booking	I mustn't have booked
you mustn't have booked
he mustn't have booked
we mustn't have booked
you mustn't have booked
they mustn't have booked	I mustn't have been booking
you mustn't have been booking
he mustn't have been booking
we mustn't have been booking
you mustn't have been booking
they mustn't have been booking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I book?
must you book?
must he book?
must we book?
must you book?
must they book? 	must I be booking?
must you be booking?
must he be booking?
must we be booking?
must you be booking?
must they be booking? 	must I have booked?
must you have booked?
must he have booked?
must we have booked?
must you have booked?
must they have booked? 	must I have been booking?
must you have been booking?
must he have been booking?
must we have been booking?
must you have been booking?
must they have been booking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I book?
mustn't you book?
mustn't he book?
mustn't we book?
mustn't you book?
mustn't they book? 	mustn't I be booking?
mustn't you be booking?
mustn't he be booking?
mustn't we be booking?
mustn't you be booking?
mustn't they be booking? 	mustn't I have booked?
mustn't you have booked?
mustn't he have booked?
mustn't we have booked?
mustn't you have booked?
mustn't they have booked? 	mustn't I have been booking?
mustn't you have been booking?
mustn't he have been booking?
mustn't we have been booking?
mustn't you have been booking?
mustn't they have been booking?