I ought to book you ought to book he ought to book we ought to book you ought to book they ought to book
V-ing form
I ought to be booking you ought to be booking he ought to be booking we ought to be booking you ought to be booking they ought to be booking
Perfect
I ought to have booked you ought to have booked he ought to have booked we ought to have booked you ought to have booked they ought to have booked
V-ing perfect
I ought to have been booking you ought to have been booking he ought to have been booking we ought to have been booking you ought to have been booking they ought to have been booking
Negation
Simple form
I oughtn't to book you oughtn't to book he oughtn't to book we oughtn't to book you oughtn't to book they oughtn't to book
V-ing form
I oughtn't to be booking you oughtn't to be booking he oughtn't to be booking we oughtn't to be booking you oughtn't to be booking they oughtn't to be booking
Perfect
I oughtn't to have booked you oughtn't to have booked he oughtn't to have booked we oughtn't to have booked you oughtn't to have booked they oughtn't to have booked
V-ing perfect
I oughtn't to have been booking you oughtn't to have been booking he oughtn't to have been booking we oughtn't to have been booking you oughtn't to have been booking they oughtn't to have been booking
Interrogative form
Simple form
ought to I book? ought to you book? ought to he book? ought to we book? ought to you book? ought to they book?
V-ing form
ought to I be booking? ought to you be booking? ought to he be booking? ought to we be booking? ought to you be booking? ought to they be booking?
Perfect
ought to I have booked? ought to you have booked? ought to he have booked? ought to we have booked? ought to you have booked? ought to they have booked?
V-ing perfect
ought to I have been booking? ought to you have been booking? ought to he have been booking? ought to we have been booking? ought to you have been booking? ought to they have been booking?
Interro-negative form
Simple form
oughtn't I to book? oughtn't you to book? oughtn't he to book? oughtn't we to book? oughtn't you to book? oughtn't they to book?
V-ing form
oughtn't I to be booking? oughtn't you to be booking? oughtn't he to be booking? oughtn't we to be booking? oughtn't you to be booking? oughtn't they to be booking?
Perfect
oughtn't I to have booked? oughtn't you to have booked? oughtn't he to have booked? oughtn't we to have booked? oughtn't you to have booked? oughtn't they to have booked?
V-ing perfect
oughtn't I to have been booking? oughtn't you to have been booking? oughtn't he to have been booking? oughtn't we to have been booking? oughtn't you to have been booking? oughtn't they to have been booking?