English verb conjugation
SHOULD CROON

Regular verb: croon - crooned - crooned

Affirmation

Simple form	V-ing form
I should croon you should croon he should croon we should croon you should croon they should croon	I should be crooning you should be crooning he should be crooning we should be crooning you should be crooning they should be crooning
Perfect	V-ing perfect
I should have crooned you should have crooned he should have crooned we should have crooned you should have crooned they should have crooned	I should have been crooning you should have been crooning he should have been crooning we should have been crooning you should have been crooning they should have been crooning

Negation

Simple form	V-ing form
I should not croon you should not croon he should not croon we should not croon you should not croon they should not croon	I should not be crooning you should not be crooning he should not be crooning we should not be crooning you should not be crooning they should not be crooning
Perfect	V-ing perfect
I should not have crooned you should not have crooned he should not have crooned we should not have crooned you should not have crooned they should not have crooned	I should not have been crooning you should not have been crooning he should not have been crooning we should not have been crooning you should not have been crooning they should not have been crooning

Interrogative form

Simple form	V-ing form
should I croon? should you croon? should he croon? should we croon? should you croon? should they croon?	should I be crooning? should you be crooning? should he be crooning? should we be crooning? should you be crooning? should they be crooning?
Perfect	V-ing perfect
should I have crooned? should you have crooned? should he have crooned? should we have crooned? should you have crooned? should they have crooned?	should I have been crooning? should you have been crooning? should he have been crooning? should we have been crooning? should you have been crooning? should they have been crooning?

Interro-negative form

Simple form	V-ing form
should I not croon? should you not croon? should he not croon? should we not croon? should you not croon? should they not croon?	should I not be crooning? should you not be crooning? should he not be crooning? should we not be crooning? should you not be crooning? should they not be crooning?
Perfect	V-ing perfect
should I not have crooned? should you not have crooned? should he not have crooned? should we not have crooned? should you not have crooned? should they not have crooned?	should I not have been crooning? should you not have been crooning? should he not have been crooning? should we not have been crooning? should you not have been crooning? should they not have been crooning?