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