I'd be refastening you'd be refastening he'd be refastening we'd be refastening you'd be refastening they'd be refastening
Perfect
I should've refastened you should've refastened he should've refastened we should've refastened you should've refastened they should've refastened
V-ing perfect
I should've been refastening you should've been refastening he should've been refastening we should've been refastening you should've been refastening they should've been refastening
Negation
Simple form
I shouldn't refasten you shouldn't refasten he shouldn't refasten we shouldn't refasten you shouldn't refasten they shouldn't refasten
V-ing form
I shouldn't be refastening you shouldn't be refastening he shouldn't be refastening we shouldn't be refastening you shouldn't be refastening they shouldn't be refastening
Perfect
I shouldn't have refastened you shouldn't have refastened he shouldn't have refastened we shouldn't have refastened you shouldn't have refastened they shouldn't have refastened
V-ing perfect
I shouldn't have been refastening you shouldn't have been refastening he shouldn't have been refastening we shouldn't have been refastening you shouldn't have been refastening they shouldn't have been refastening
Interrogative form
Simple form
should I refasten? should you refasten? should he refasten? should we refasten? should you refasten? should they refasten?
V-ing form
should I be refastening? should you be refastening? should he be refastening? should we be refastening? should you be refastening? should they be refastening?
Perfect
should I have refastened? should you have refastened? should he have refastened? should we have refastened? should you have refastened? should they have refastened?
V-ing perfect
should I have been refastening? should you have been refastening? should he have been refastening? should we have been refastening? should you have been refastening? should they have been refastening?
Interro-negative form
Simple form
shouldn't I refasten? shouldn't you refasten? shouldn't he refasten? shouldn't we refasten? shouldn't you refasten? shouldn't they refasten?
V-ing form
shouldn't I be refastening? shouldn't you be refastening? shouldn't he be refastening? shouldn't we be refastening? shouldn't you be refastening? shouldn't they be refastening?
Perfect
shouldn't I have refastened? shouldn't you have refastened? shouldn't he have refastened? shouldn't we have refastened? shouldn't you have refastened? shouldn't they have refastened?
V-ing perfect
shouldn't I have been refastening? shouldn't you have been refastening? shouldn't he have been refastening? shouldn't we have been refastening? shouldn't you have been refastening? shouldn't they have been refastening?