English verb conjugation
SHOULD AIRMAIL

Regular verb: airmail - airmailed - airmailed

Affirmation

Simple form	V-ing form
I should airmail you should airmail he should airmail we should airmail you should airmail they should airmail	I should be airmailing you should be airmailing he should be airmailing we should be airmailing you should be airmailing they should be airmailing
Perfect	V-ing perfect
I should have airmailed you should have airmailed he should have airmailed we should have airmailed you should have airmailed they should have airmailed	I should have been airmailing you should have been airmailing he should have been airmailing we should have been airmailing you should have been airmailing they should have been airmailing

Negation

Simple form	V-ing form
I should not airmail you should not airmail he should not airmail we should not airmail you should not airmail they should not airmail	I should not be airmailing you should not be airmailing he should not be airmailing we should not be airmailing you should not be airmailing they should not be airmailing
Perfect	V-ing perfect
I should not have airmailed you should not have airmailed he should not have airmailed we should not have airmailed you should not have airmailed they should not have airmailed	I should not have been airmailing you should not have been airmailing he should not have been airmailing we should not have been airmailing you should not have been airmailing they should not have been airmailing

Interrogative form

Simple form	V-ing form
should I airmail? should you airmail? should he airmail? should we airmail? should you airmail? should they airmail?	should I be airmailing? should you be airmailing? should he be airmailing? should we be airmailing? should you be airmailing? should they be airmailing?
Perfect	V-ing perfect
should I have airmailed? should you have airmailed? should he have airmailed? should we have airmailed? should you have airmailed? should they have airmailed?	should I have been airmailing? should you have been airmailing? should he have been airmailing? should we have been airmailing? should you have been airmailing? should they have been airmailing?

Interro-negative form

Simple form	V-ing form
should I not airmail? should you not airmail? should he not airmail? should we not airmail? should you not airmail? should they not airmail?	should I not be airmailing? should you not be airmailing? should he not be airmailing? should we not be airmailing? should you not be airmailing? should they not be airmailing?
Perfect	V-ing perfect
should I not have airmailed? should you not have airmailed? should he not have airmailed? should we not have airmailed? should you not have airmailed? should they not have airmailed?	should I not have been airmailing? should you not have been airmailing? should he not have been airmailing? should we not have been airmailing? should you not have been airmailing? should they not have been airmailing?