English verb conjugation
SHOULD KEEN

Regular verb: keen - keened - keened

Affirmation

Simple form	V-ing form
I should keen you should keen he should keen we should keen you should keen they should keen	I should be keening you should be keening he should be keening we should be keening you should be keening they should be keening
Perfect	V-ing perfect
I should have keened you should have keened he should have keened we should have keened you should have keened they should have keened	I should have been keening you should have been keening he should have been keening we should have been keening you should have been keening they should have been keening

Negation

Simple form	V-ing form
I should not keen you should not keen he should not keen we should not keen you should not keen they should not keen	I should not be keening you should not be keening he should not be keening we should not be keening you should not be keening they should not be keening
Perfect	V-ing perfect
I should not have keened you should not have keened he should not have keened we should not have keened you should not have keened they should not have keened	I should not have been keening you should not have been keening he should not have been keening we should not have been keening you should not have been keening they should not have been keening

Interrogative form

Simple form	V-ing form
should I keen? should you keen? should he keen? should we keen? should you keen? should they keen?	should I be keening? should you be keening? should he be keening? should we be keening? should you be keening? should they be keening?
Perfect	V-ing perfect
should I have keened? should you have keened? should he have keened? should we have keened? should you have keened? should they have keened?	should I have been keening? should you have been keening? should he have been keening? should we have been keening? should you have been keening? should they have been keening?

Interro-negative form

Simple form	V-ing form
should I not keen? should you not keen? should he not keen? should we not keen? should you not keen? should they not keen?	should I not be keening? should you not be keening? should he not be keening? should we not be keening? should you not be keening? should they not be keening?
Perfect	V-ing perfect
should I not have keened? should you not have keened? should he not have keened? should we not have keened? should you not have keened? should they not have keened?	should I not have been keening? should you not have been keening? should he not have been keening? should we not have been keening? should you not have been keening? should they not have been keening?