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