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
she must book
we must book
you must book
they must book 	I must be booking
you must be booking
she must be booking
we must be booking
you must be booking
they must be booking	I must have booked
you must have booked
she 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
she 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 must not book
you must not book
she must not book
we must not book
you must not book
they must not book 	I must not be booking
you must not be booking
she must not be booking
we must not be booking
you must not be booking
they must not be booking	I must not have booked
you must not have booked
she must not have booked
we must not have booked
you must not have booked
they must not have booked	I must not have been booking
you must not have been booking
she must not have been booking
we must not have been booking
you must not have been booking
they must not have been booking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I book?
must you book?
must she book?
must we book?
must you book?
must they book? 	must I be booking?
must you be booking?
must she be booking?
must we be booking?
must you be booking?
must they be booking? 	must I have booked?
must you have booked?
must she 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 she 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 	
must I not book?
must you not book?
must she not book?
must we not book?
must you not book?
must they not book? 	must I not be booking?
must you not be booking?
must she not be booking?
must we not be booking?
must you not be booking?
must they not be booking? 	must I not have booked?
must you not have booked?
must she not have booked?
must we not have booked?
must you not have booked?
must they not have booked? 	must I not have been booking?
must you not have been booking?
must she not have been booking?
must we not have been booking?
must you not have been booking?
must they not have been booking?