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