I'd be re-tightening you'd be re-tightening he'd be re-tightening we'd be re-tightening you'd be re-tightening they'd be re-tightening
Perfect
I should've re-tightened you should've re-tightened he should've re-tightened we should've re-tightened you should've re-tightened they should've re-tightened
V-ing perfect
I should've been re-tightening you should've been re-tightening he should've been re-tightening we should've been re-tightening you should've been re-tightening they should've been re-tightening
Negation
Simple form
I shouldn't re-tighten you shouldn't re-tighten he shouldn't re-tighten we shouldn't re-tighten you shouldn't re-tighten they shouldn't re-tighten
V-ing form
I shouldn't be re-tightening you shouldn't be re-tightening he shouldn't be re-tightening we shouldn't be re-tightening you shouldn't be re-tightening they shouldn't be re-tightening
Perfect
I shouldn't have re-tightened you shouldn't have re-tightened he shouldn't have re-tightened we shouldn't have re-tightened you shouldn't have re-tightened they shouldn't have re-tightened
V-ing perfect
I shouldn't have been re-tightening you shouldn't have been re-tightening he shouldn't have been re-tightening we shouldn't have been re-tightening you shouldn't have been re-tightening they shouldn't have been re-tightening
Interrogative form
Simple form
should I re-tighten? should you re-tighten? should he re-tighten? should we re-tighten? should you re-tighten? should they re-tighten?
V-ing form
should I be re-tightening? should you be re-tightening? should he be re-tightening? should we be re-tightening? should you be re-tightening? should they be re-tightening?
Perfect
should I have re-tightened? should you have re-tightened? should he have re-tightened? should we have re-tightened? should you have re-tightened? should they have re-tightened?
V-ing perfect
should I have been re-tightening? should you have been re-tightening? should he have been re-tightening? should we have been re-tightening? should you have been re-tightening? should they have been re-tightening?
Interro-negative form
Simple form
shouldn't I re-tighten? shouldn't you re-tighten? shouldn't he re-tighten? shouldn't we re-tighten? shouldn't you re-tighten? shouldn't they re-tighten?
V-ing form
shouldn't I be re-tightening? shouldn't you be re-tightening? shouldn't he be re-tightening? shouldn't we be re-tightening? shouldn't you be re-tightening? shouldn't they be re-tightening?
Perfect
shouldn't I have re-tightened? shouldn't you have re-tightened? shouldn't he have re-tightened? shouldn't we have re-tightened? shouldn't you have re-tightened? shouldn't they have re-tightened?
V-ing perfect
shouldn't I have been re-tightening? shouldn't you have been re-tightening? shouldn't he have been re-tightening? shouldn't we have been re-tightening? shouldn't you have been re-tightening? shouldn't they have been re-tightening?