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