English verb conjugation
SHOULD DISTINGUISH

Regular verb: distinguish - distinguished - distinguished

Affirmation

Simple form	V-ing form
I'd distinguish you'd distinguish he'd distinguish we'd distinguish you'd distinguish they'd distinguish	I'd be distinguishing you'd be distinguishing he'd be distinguishing we'd be distinguishing you'd be distinguishing they'd be distinguishing
Perfect	V-ing perfect
I should've distinguished you should've distinguished he should've distinguished we should've distinguished you should've distinguished they should've distinguished	I should've been distinguishing you should've been distinguishing he should've been distinguishing we should've been distinguishing you should've been distinguishing they should've been distinguishing

Negation

Simple form	V-ing form
I shouldn't distinguish you shouldn't distinguish he shouldn't distinguish we shouldn't distinguish you shouldn't distinguish they shouldn't distinguish	I shouldn't be distinguishing you shouldn't be distinguishing he shouldn't be distinguishing we shouldn't be distinguishing you shouldn't be distinguishing they shouldn't be distinguishing
Perfect	V-ing perfect
I shouldn't have distinguished you shouldn't have distinguished he shouldn't have distinguished we shouldn't have distinguished you shouldn't have distinguished they shouldn't have distinguished	I shouldn't have been distinguishing you shouldn't have been distinguishing he 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	V-ing form
should I distinguish? should you distinguish? should he distinguish? should we distinguish? should you distinguish? should they distinguish?	should I be distinguishing? should you be distinguishing? should he be distinguishing? should we be distinguishing? should you be distinguishing? should they be distinguishing?
Perfect	V-ing perfect
should I have distinguished? should you have distinguished? should he have distinguished? should we have distinguished? should you have distinguished? should they have distinguished?	should I have been distinguishing? should you have been distinguishing? should he have been distinguishing? should we have been distinguishing? should you have been distinguishing? should they have been distinguishing?

Interro-negative form

Simple form	V-ing form
shouldn't I distinguish? shouldn't you distinguish? shouldn't he distinguish? shouldn't we distinguish? shouldn't you distinguish? shouldn't they distinguish?	shouldn't I be distinguishing? shouldn't you be distinguishing? shouldn't he be distinguishing? shouldn't we be distinguishing? shouldn't you be distinguishing? shouldn't they be distinguishing?
Perfect	V-ing perfect
shouldn't I have distinguished? shouldn't you have distinguished? shouldn't he have distinguished? shouldn't we have distinguished? shouldn't you have distinguished? shouldn't they have distinguished?	shouldn't I have been distinguishing? shouldn't you have been distinguishing? shouldn't he have been distinguishing? shouldn't we have been distinguishing? shouldn't you have been distinguishing? shouldn't they have been distinguishing?