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