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