English verb conjugation
SHOULD PREEN

Regular verb: preen - preened - preened

Affirmation

Simple form	V-ing form
I should preen you should preen he should preen we should preen you should preen they should preen	I should be preening you should be preening he should be preening we should be preening you should be preening they should be preening
Perfect	V-ing perfect
I should have preened you should have preened he should have preened we should have preened you should have preened they should have preened	I should have been preening you should have been preening he should have been preening we should have been preening you should have been preening they should have been preening

Negation

Simple form	V-ing form
I should not preen you should not preen he should not preen we should not preen you should not preen they should not preen	I should not be preening you should not be preening he should not be preening we should not be preening you should not be preening they should not be preening
Perfect	V-ing perfect
I should not have preened you should not have preened he should not have preened we should not have preened you should not have preened they should not have preened	I should not have been preening you should not have been preening he should not have been preening we should not have been preening you should not have been preening they should not have been preening

Interrogative form

Simple form	V-ing form
should I preen? should you preen? should he preen? should we preen? should you preen? should they preen?	should I be preening? should you be preening? should he be preening? should we be preening? should you be preening? should they be preening?
Perfect	V-ing perfect
should I have preened? should you have preened? should he have preened? should we have preened? should you have preened? should they have preened?	should I have been preening? should you have been preening? should he have been preening? should we have been preening? should you have been preening? should they have been preening?

Interro-negative form

Simple form	V-ing form
should I not preen? should you not preen? should he not preen? should we not preen? should you not preen? should they not preen?	should I not be preening? should you not be preening? should he not be preening? should we not be preening? should you not be preening? should they not be preening?
Perfect	V-ing perfect
should I not have preened? should you not have preened? should he not have preened? should we not have preened? should you not have preened? should they not have preened?	should I not have been preening? should you not have been preening? should he not have been preening? should we not have been preening? should you not have been preening? should they not have been preening?