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