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