I'd book you'd book she'd book we'd book you'd book they'd book
V-ing form
I'd be booking you'd be booking she'd be booking we'd be booking you'd be booking they'd be booking
Perfect
I should've booked you should've booked she 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 she 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 she 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 she 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 she 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 she 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 she book? should we book? should you book? should they book?
V-ing form
should I be booking? should you be booking? should she be booking? should we be booking? should you be booking? should they be booking?
Perfect
should I have booked? should you have booked? should she 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 she 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 she 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 she 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 she 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 she have been booking? shouldn't we have been booking? shouldn't you have been booking? shouldn't they have been booking?