English verb conjugation
SHOULD VARNISH

Regular verb: varnish - varnished - varnished

Affirmation

Simple form	V-ing form
I'd varnish you'd varnish he'd varnish we'd varnish you'd varnish they'd varnish	I'd be varnishing you'd be varnishing he'd be varnishing we'd be varnishing you'd be varnishing they'd be varnishing
Perfect	V-ing perfect
I should've varnished you should've varnished he should've varnished we should've varnished you should've varnished they should've varnished	I should've been varnishing you should've been varnishing he should've been varnishing we should've been varnishing you should've been varnishing they should've been varnishing

Negation

Simple form	V-ing form
I shouldn't varnish you shouldn't varnish he shouldn't varnish we shouldn't varnish you shouldn't varnish they shouldn't varnish	I shouldn't be varnishing you shouldn't be varnishing he shouldn't be varnishing we shouldn't be varnishing you shouldn't be varnishing they shouldn't be varnishing
Perfect	V-ing perfect
I shouldn't have varnished you shouldn't have varnished he shouldn't have varnished we shouldn't have varnished you shouldn't have varnished they shouldn't have varnished	I shouldn't have been varnishing you shouldn't have been varnishing he shouldn't have been varnishing we shouldn't have been varnishing you shouldn't have been varnishing they shouldn't have been varnishing

Interrogative form

Simple form	V-ing form
should I varnish? should you varnish? should he varnish? should we varnish? should you varnish? should they varnish?	should I be varnishing? should you be varnishing? should he be varnishing? should we be varnishing? should you be varnishing? should they be varnishing?
Perfect	V-ing perfect
should I have varnished? should you have varnished? should he have varnished? should we have varnished? should you have varnished? should they have varnished?	should I have been varnishing? should you have been varnishing? should he have been varnishing? should we have been varnishing? should you have been varnishing? should they have been varnishing?

Interro-negative form

Simple form	V-ing form
shouldn't I varnish? shouldn't you varnish? shouldn't he varnish? shouldn't we varnish? shouldn't you varnish? shouldn't they varnish?	shouldn't I be varnishing? shouldn't you be varnishing? shouldn't he be varnishing? shouldn't we be varnishing? shouldn't you be varnishing? shouldn't they be varnishing?
Perfect	V-ing perfect
shouldn't I have varnished? shouldn't you have varnished? shouldn't he have varnished? shouldn't we have varnished? shouldn't you have varnished? shouldn't they have varnished?	shouldn't I have been varnishing? shouldn't you have been varnishing? shouldn't he have been varnishing? shouldn't we have been varnishing? shouldn't you have been varnishing? shouldn't they have been varnishing?