I should lap you should lap he should lap we should lap you should lap they should lap
V-ing form
I should be lapping you should be lapping he should be lapping we should be lapping you should be lapping they should be lapping
Perfect
I should have lapped you should have lapped he should have lapped we should have lapped you should have lapped they should have lapped
V-ing perfect
I should have been lapping you should have been lapping he should have been lapping we should have been lapping you should have been lapping they should have been lapping
Negation
Simple form
I should not lap you should not lap he should not lap we should not lap you should not lap they should not lap
V-ing form
I should not be lapping you should not be lapping he should not be lapping we should not be lapping you should not be lapping they should not be lapping
Perfect
I should not have lapped you should not have lapped he should not have lapped we should not have lapped you should not have lapped they should not have lapped
V-ing perfect
I should not have been lapping you should not have been lapping he should not have been lapping we should not have been lapping you should not have been lapping they should not have been lapping
Interrogative form
Simple form
should I lap? should you lap? should he lap? should we lap? should you lap? should they lap?
V-ing form
should I be lapping? should you be lapping? should he be lapping? should we be lapping? should you be lapping? should they be lapping?
Perfect
should I have lapped? should you have lapped? should he have lapped? should we have lapped? should you have lapped? should they have lapped?
V-ing perfect
should I have been lapping? should you have been lapping? should he have been lapping? should we have been lapping? should you have been lapping? should they have been lapping?
Interro-negative form
Simple form
should I not lap? should you not lap? should he not lap? should we not lap? should you not lap? should they not lap?
V-ing form
should I not be lapping? should you not be lapping? should he not be lapping? should we not be lapping? should you not be lapping? should they not be lapping?
Perfect
should I not have lapped? should you not have lapped? should he not have lapped? should we not have lapped? should you not have lapped? should they not have lapped?
V-ing perfect
should I not have been lapping? should you not have been lapping? should he not have been lapping? should we not have been lapping? should you not have been lapping? should they not have been lapping?