I'd be customizing you'd be customizing she'd be customizing we'd be customizing you'd be customizing they'd be customizing
Perfect
I should've customized you should've customized she should've customized we should've customized you should've customized they should've customized
V-ing perfect
I should've been customizing you should've been customizing she should've been customizing we should've been customizing you should've been customizing they should've been customizing
Negation
Simple form
I shouldn't customize you shouldn't customize she shouldn't customize we shouldn't customize you shouldn't customize they shouldn't customize
V-ing form
I shouldn't be customizing you shouldn't be customizing she shouldn't be customizing we shouldn't be customizing you shouldn't be customizing they shouldn't be customizing
Perfect
I shouldn't have customized you shouldn't have customized she shouldn't have customized we shouldn't have customized you shouldn't have customized they shouldn't have customized
V-ing perfect
I shouldn't have been customizing you shouldn't have been customizing she shouldn't have been customizing we shouldn't have been customizing you shouldn't have been customizing they shouldn't have been customizing
Interrogative form
Simple form
should I customize? should you customize? should she customize? should we customize? should you customize? should they customize?
V-ing form
should I be customizing? should you be customizing? should she be customizing? should we be customizing? should you be customizing? should they be customizing?
Perfect
should I have customized? should you have customized? should she have customized? should we have customized? should you have customized? should they have customized?
V-ing perfect
should I have been customizing? should you have been customizing? should she have been customizing? should we have been customizing? should you have been customizing? should they have been customizing?
Interro-negative form
Simple form
shouldn't I customize? shouldn't you customize? shouldn't she customize? shouldn't we customize? shouldn't you customize? shouldn't they customize?
V-ing form
shouldn't I be customizing? shouldn't you be customizing? shouldn't she be customizing? shouldn't we be customizing? shouldn't you be customizing? shouldn't they be customizing?
Perfect
shouldn't I have customized? shouldn't you have customized? shouldn't she have customized? shouldn't we have customized? shouldn't you have customized? shouldn't they have customized?
V-ing perfect
shouldn't I have been customizing? shouldn't you have been customizing? shouldn't she have been customizing? shouldn't we have been customizing? shouldn't you have been customizing? shouldn't they have been customizing?