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