I'd book you'd book he'd book we'd book you'd book they'd book
V-ing form
I'd be booking you'd be booking he'd be booking we'd be booking you'd be booking they'd be booking
Perfect
I should've booked you should've booked he should've booked we should've booked you should've booked they should've booked
V-ing perfect
I should've been booking you should've been booking he should've been booking we should've been booking you should've been booking they should've been booking
Negation
Simple form
I shouldn't book you shouldn't book he shouldn't book we shouldn't book you shouldn't book they shouldn't book
V-ing form
I shouldn't be booking you shouldn't be booking he shouldn't be booking we shouldn't be booking you shouldn't be booking they shouldn't be booking
Perfect
I shouldn't have booked you shouldn't have booked he shouldn't have booked we shouldn't have booked you shouldn't have booked they shouldn't have booked
V-ing perfect
I shouldn't have been booking you shouldn't have been booking he shouldn't have been booking we shouldn't have been booking you shouldn't have been booking they shouldn't have been booking
Interrogative form
Simple form
should I book? should you book? should he book? should we book? should you book? should they book?
V-ing form
should I be booking? should you be booking? should he be booking? should we be booking? should you be booking? should they be booking?
Perfect
should I have booked? should you have booked? should he have booked? should we have booked? should you have booked? should they have booked?
V-ing perfect
should I have been booking? should you have been booking? should he have been booking? should we have been booking? should you have been booking? should they have been booking?
Interro-negative form
Simple form
shouldn't I book? shouldn't you book? shouldn't he book? shouldn't we book? shouldn't you book? shouldn't they book?
V-ing form
shouldn't I be booking? shouldn't you be booking? shouldn't he be booking? shouldn't we be booking? shouldn't you be booking? shouldn't they be booking?
Perfect
shouldn't I have booked? shouldn't you have booked? shouldn't he have booked? shouldn't we have booked? shouldn't you have booked? shouldn't they have booked?
V-ing perfect
shouldn't I have been booking? shouldn't you have been booking? shouldn't he have been booking? shouldn't we have been booking? shouldn't you have been booking? shouldn't they have been booking?