English verb conjugation
SHOULD SLACK

Regular verb: slack - slacked - slacked

Affirmation

Simple form	V-ing form
I should slack you should slack he should slack we should slack you should slack they should slack	I should be slacking you should be slacking he should be slacking we should be slacking you should be slacking they should be slacking
Perfect	V-ing perfect
I should have slacked you should have slacked he should have slacked we should have slacked you should have slacked they should have slacked	I should have been slacking you should have been slacking he should have been slacking we should have been slacking you should have been slacking they should have been slacking

Negation

Simple form	V-ing form
I should not slack you should not slack he should not slack we should not slack you should not slack they should not slack	I should not be slacking you should not be slacking he should not be slacking we should not be slacking you should not be slacking they should not be slacking
Perfect	V-ing perfect
I should not have slacked you should not have slacked he should not have slacked we should not have slacked you should not have slacked they should not have slacked	I should not have been slacking you should not have been slacking he should not have been slacking we should not have been slacking you should not have been slacking they should not have been slacking

Interrogative form

Simple form	V-ing form
should I slack? should you slack? should he slack? should we slack? should you slack? should they slack?	should I be slacking? should you be slacking? should he be slacking? should we be slacking? should you be slacking? should they be slacking?
Perfect	V-ing perfect
should I have slacked? should you have slacked? should he have slacked? should we have slacked? should you have slacked? should they have slacked?	should I have been slacking? should you have been slacking? should he have been slacking? should we have been slacking? should you have been slacking? should they have been slacking?

Interro-negative form

Simple form	V-ing form
should I not slack? should you not slack? should he not slack? should we not slack? should you not slack? should they not slack?	should I not be slacking? should you not be slacking? should he not be slacking? should we not be slacking? should you not be slacking? should they not be slacking?
Perfect	V-ing perfect
should I not have slacked? should you not have slacked? should he not have slacked? should we not have slacked? should you not have slacked? should they not have slacked?	should I not have been slacking? should you not have been slacking? should he not have been slacking? should we not have been slacking? should you not have been slacking? should they not have been slacking?