I should retighten you should retighten she should retighten we should retighten you should retighten they should retighten
V-ing form
I should be retightening you should be retightening she should be retightening we should be retightening you should be retightening they should be retightening
Perfect
I should have retightened you should have retightened she should have retightened we should have retightened you should have retightened they should have retightened
V-ing perfect
I should have been retightening you should have been retightening she should have been retightening we should have been retightening you should have been retightening they should have been retightening
Negation
Simple form
I should not retighten you should not retighten she should not retighten we should not retighten you should not retighten they should not retighten
V-ing form
I should not be retightening you should not be retightening she should not be retightening we should not be retightening you should not be retightening they should not be retightening
Perfect
I should not have retightened you should not have retightened she should not have retightened we should not have retightened you should not have retightened they should not have retightened
V-ing perfect
I should not have been retightening you should not have been retightening she should not have been retightening we should not have been retightening you should not have been retightening they should not have been retightening
Interrogative form
Simple form
should I retighten? should you retighten? should she retighten? should we retighten? should you retighten? should they retighten?
V-ing form
should I be retightening? should you be retightening? should she be retightening? should we be retightening? should you be retightening? should they be retightening?
Perfect
should I have retightened? should you have retightened? should she have retightened? should we have retightened? should you have retightened? should they have retightened?
V-ing perfect
should I have been retightening? should you have been retightening? should she have been retightening? should we have been retightening? should you have been retightening? should they have been retightening?
Interro-negative form
Simple form
should I not retighten? should you not retighten? should she not retighten? should we not retighten? should you not retighten? should they not retighten?
V-ing form
should I not be retightening? should you not be retightening? should she not be retightening? should we not be retightening? should you not be retightening? should they not be retightening?
Perfect
should I not have retightened? should you not have retightened? should she not have retightened? should we not have retightened? should you not have retightened? should they not have retightened?
V-ing perfect
should I not have been retightening? should you not have been retightening? should she not have been retightening? should we not have been retightening? should you not have been retightening? should they not have been retightening?