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