English verb conjugation
SHOULD AIRMAIL

Regular verb: airmail - airmailed - airmailed

Affirmation

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

Negation

Simple form	V-ing form
I shouldn't airmail you shouldn't airmail he shouldn't airmail we shouldn't airmail you shouldn't airmail they shouldn't airmail	I shouldn't be airmailing you shouldn't be airmailing he shouldn't be airmailing we shouldn't be airmailing you shouldn't be airmailing they shouldn't be airmailing
Perfect	V-ing perfect
I shouldn't have airmailed you shouldn't have airmailed he shouldn't have airmailed we shouldn't have airmailed you shouldn't have airmailed they shouldn't have airmailed	I shouldn't have been airmailing you shouldn't have been airmailing he shouldn't have been airmailing we shouldn't have been airmailing you shouldn't have been airmailing they shouldn't 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
shouldn't I airmail? shouldn't you airmail? shouldn't he airmail? shouldn't we airmail? shouldn't you airmail? shouldn't they airmail?	shouldn't I be airmailing? shouldn't you be airmailing? shouldn't he be airmailing? shouldn't we be airmailing? shouldn't you be airmailing? shouldn't they be airmailing?
Perfect	V-ing perfect
shouldn't I have airmailed? shouldn't you have airmailed? shouldn't he have airmailed? shouldn't we have airmailed? shouldn't you have airmailed? shouldn't they have airmailed?	shouldn't I have been airmailing? shouldn't you have been airmailing? shouldn't he have been airmailing? shouldn't we have been airmailing? shouldn't you have been airmailing? shouldn't they have been airmailing?