English verb conjugation
SHOULD BURR

Regular verb: burr - burred - burred

Affirmation

Simple form	V-ing form
I should burr you should burr she should burr we should burr you should burr they should burr	I should be burring you should be burring she should be burring we should be burring you should be burring they should be burring
Perfect	V-ing perfect
I should have burred you should have burred she should have burred we should have burred you should have burred they should have burred	I should have been burring you should have been burring she should have been burring we should have been burring you should have been burring they should have been burring

Negation

Simple form	V-ing form
I should not burr you should not burr she should not burr we should not burr you should not burr they should not burr	I should not be burring you should not be burring she should not be burring we should not be burring you should not be burring they should not be burring
Perfect	V-ing perfect
I should not have burred you should not have burred she should not have burred we should not have burred you should not have burred they should not have burred	I should not have been burring you should not have been burring she should not have been burring we should not have been burring you should not have been burring they should not have been burring

Interrogative form

Simple form	V-ing form
should I burr? should you burr? should she burr? should we burr? should you burr? should they burr?	should I be burring? should you be burring? should she be burring? should we be burring? should you be burring? should they be burring?
Perfect	V-ing perfect
should I have burred? should you have burred? should she have burred? should we have burred? should you have burred? should they have burred?	should I have been burring? should you have been burring? should she have been burring? should we have been burring? should you have been burring? should they have been burring?

Interro-negative form

Simple form	V-ing form
should I not burr? should you not burr? should she not burr? should we not burr? should you not burr? should they not burr?	should I not be burring? should you not be burring? should she not be burring? should we not be burring? should you not be burring? should they not be burring?
Perfect	V-ing perfect
should I not have burred? should you not have burred? should she not have burred? should we not have burred? should you not have burred? should they not have burred?	should I not have been burring? should you not have been burring? should she not have been burring? should we not have been burring? should you not have been burring? should they not have been burring?