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