English verb conjugation
SHOULD PROOF

Regular verb: proof - proofed - proofed

Affirmation

Simple form	V-ing form
I'd proof you'd proof he'd proof we'd proof you'd proof they'd proof	I'd be proofing you'd be proofing he'd be proofing we'd be proofing you'd be proofing they'd be proofing
Perfect	V-ing perfect
I should've proofed you should've proofed he should've proofed we should've proofed you should've proofed they should've proofed	I should've been proofing you should've been proofing he should've been proofing we should've been proofing you should've been proofing they should've been proofing

Negation

Simple form	V-ing form
I shouldn't proof you shouldn't proof he shouldn't proof we shouldn't proof you shouldn't proof they shouldn't proof	I shouldn't be proofing you shouldn't be proofing he shouldn't be proofing we shouldn't be proofing you shouldn't be proofing they shouldn't be proofing
Perfect	V-ing perfect
I shouldn't have proofed you shouldn't have proofed he shouldn't have proofed we shouldn't have proofed you shouldn't have proofed they shouldn't have proofed	I shouldn't have been proofing you shouldn't have been proofing he shouldn't have been proofing we shouldn't have been proofing you shouldn't have been proofing they shouldn't have been proofing

Interrogative form

Simple form	V-ing form
should I proof? should you proof? should he proof? should we proof? should you proof? should they proof?	should I be proofing? should you be proofing? should he be proofing? should we be proofing? should you be proofing? should they be proofing?
Perfect	V-ing perfect
should I have proofed? should you have proofed? should he have proofed? should we have proofed? should you have proofed? should they have proofed?	should I have been proofing? should you have been proofing? should he have been proofing? should we have been proofing? should you have been proofing? should they have been proofing?

Interro-negative form

Simple form	V-ing form
shouldn't I proof? shouldn't you proof? shouldn't he proof? shouldn't we proof? shouldn't you proof? shouldn't they proof?	shouldn't I be proofing? shouldn't you be proofing? shouldn't he be proofing? shouldn't we be proofing? shouldn't you be proofing? shouldn't they be proofing?
Perfect	V-ing perfect
shouldn't I have proofed? shouldn't you have proofed? shouldn't he have proofed? shouldn't we have proofed? shouldn't you have proofed? shouldn't they have proofed?	shouldn't I have been proofing? shouldn't you have been proofing? shouldn't he have been proofing? shouldn't we have been proofing? shouldn't you have been proofing? shouldn't they have been proofing?