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