female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation MUST BOOK
Regular verb: book - booked - booked
Affirmation
Simple form
I must bookyou must book
he must book
we must book
you must book
they must book
V-ing form
I must be bookingyou must be booking
he must be booking
we must be booking
you must be booking
they must be booking
Perfect
I must have bookedyou must have booked
he must have booked
we must have booked
you must have booked
they must have booked
V-ing perfect
I must have been bookingyou must have been booking
he must have been booking
we must have been booking
you must have been booking
they must have been booking
Negation
Simple form
I must not bookyou must not book
he must not book
we must not book
you must not book
they must not book
V-ing form
I must not be bookingyou must not be booking
he must not be booking
we must not be booking
you must not be booking
they must not be booking
Perfect
I must not have bookedyou must not have booked
he must not have booked
we must not have booked
you must not have booked
they must not have booked
V-ing perfect
I must not have been bookingyou must not have been booking
he must not have been booking
we must not have been booking
you must not have been booking
they must not have been booking
Interrogative form
Simple form
must I book?must you book?
must he book?
must we book?
must you book?
must they book?
V-ing form
must I be booking?must you be booking?
must he be booking?
must we be booking?
must you be booking?
must they be booking?
Perfect
must I have booked?must you have booked?
must he have booked?
must we have booked?
must you have booked?
must they have booked?
V-ing perfect
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?
Interro-negative form
Simple form
must I not book?must you not book?
must he not book?
must we not book?
must you not book?
must they not book?
V-ing form
must I not be booking?must you not be booking?
must he not be booking?
must we not be booking?
must you not be booking?
must they not be booking?
Perfect
must I not have booked?must you not have booked?
must he not have booked?
must we not have booked?
must you not have booked?
must they not have booked?
V-ing perfect
must I not have been booking?must you not have been booking?
must he not have been booking?
must we not have been booking?
must you not have been booking?
must they not have been booking?