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