should perpetuate
Regular verb: perpetuate - perpetuated- perpetuated

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