English verb conjugation
SHOULD DOUBLE-BOOK

Regular verb: double-book - double-booked - double-booked

Affirmation

Simple form	V-ing form
I should double-book you should double-book he should double-book we should double-book you should double-book they should double-book	I should be double-booking you should be double-booking he should be double-booking we should be double-booking you should be double-booking they should be double-booking
Perfect	V-ing perfect
I should have double-booked you should have double-booked he should have double-booked we should have double-booked you should have double-booked they should have double-booked	I should have been double-booking you should have been double-booking he should have been double-booking we should have been double-booking you should have been double-booking they should have been double-booking

Negation

Simple form	V-ing form
I should not double-book you should not double-book he should not double-book we should not double-book you should not double-book they should not double-book	I should not be double-booking you should not be double-booking he should not be double-booking we should not be double-booking you should not be double-booking they should not be double-booking
Perfect	V-ing perfect
I should not have double-booked you should not have double-booked he should not have double-booked we should not have double-booked you should not have double-booked they should not have double-booked	I should not have been double-booking you should not have been double-booking he should not have been double-booking we should not have been double-booking you should not have been double-booking they should not have been double-booking

Interrogative form

Simple form	V-ing form
should I double-book? should you double-book? should he double-book? should we double-book? should you double-book? should they double-book?	should I be double-booking? should you be double-booking? should he be double-booking? should we be double-booking? should you be double-booking? should they be double-booking?
Perfect	V-ing perfect
should I have double-booked? should you have double-booked? should he have double-booked? should we have double-booked? should you have double-booked? should they have double-booked?	should I have been double-booking? should you have been double-booking? should he have been double-booking? should we have been double-booking? should you have been double-booking? should they have been double-booking?

Interro-negative form

Simple form	V-ing form
should I not double-book? should you not double-book? should he not double-book? should we not double-book? should you not double-book? should they not double-book?	should I not be double-booking? should you not be double-booking? should he not be double-booking? should we not be double-booking? should you not be double-booking? should they not be double-booking?
Perfect	V-ing perfect
should I not have double-booked? should you not have double-booked? should he not have double-booked? should we not have double-booked? should you not have double-booked? should they not have double-booked?	should I not have been double-booking? should you not have been double-booking? should he not have been double-booking? should we not have been double-booking? should you not have been double-booking? should they not have been double-booking?