English verb conjugation
SHOULD EXTINGUISH

Regular verb: extinguish - extinguished - extinguished

Affirmation

Simple form	V-ing form
I should extinguish you should extinguish she should extinguish we should extinguish you should extinguish they should extinguish	I should be extinguishing you should be extinguishing she should be extinguishing we should be extinguishing you should be extinguishing they should be extinguishing
Perfect	V-ing perfect
I should have extinguished you should have extinguished she should have extinguished we should have extinguished you should have extinguished they should have extinguished	I should have been extinguishing you should have been extinguishing she should have been extinguishing we should have been extinguishing you should have been extinguishing they should have been extinguishing

Negation

Simple form	V-ing form
I should not extinguish you should not extinguish she should not extinguish we should not extinguish you should not extinguish they should not extinguish	I should not be extinguishing you should not be extinguishing she should not be extinguishing we should not be extinguishing you should not be extinguishing they should not be extinguishing
Perfect	V-ing perfect
I should not have extinguished you should not have extinguished she should not have extinguished we should not have extinguished you should not have extinguished they should not have extinguished	I should not have been extinguishing you should not have been extinguishing she should not have been extinguishing we should not have been extinguishing you should not have been extinguishing they should not have been extinguishing

Interrogative form

Simple form	V-ing form
should I extinguish? should you extinguish? should she extinguish? should we extinguish? should you extinguish? should they extinguish?	should I be extinguishing? should you be extinguishing? should she be extinguishing? should we be extinguishing? should you be extinguishing? should they be extinguishing?
Perfect	V-ing perfect
should I have extinguished? should you have extinguished? should she have extinguished? should we have extinguished? should you have extinguished? should they have extinguished?	should I have been extinguishing? should you have been extinguishing? should she have been extinguishing? should we have been extinguishing? should you have been extinguishing? should they have been extinguishing?

Interro-negative form

Simple form	V-ing form
should I not extinguish? should you not extinguish? should she not extinguish? should we not extinguish? should you not extinguish? should they not extinguish?	should I not be extinguishing? should you not be extinguishing? should she not be extinguishing? should we not be extinguishing? should you not be extinguishing? should they not be extinguishing?
Perfect	V-ing perfect
should I not have extinguished? should you not have extinguished? should she not have extinguished? should we not have extinguished? should you not have extinguished? should they not have extinguished?	should I not have been extinguishing? should you not have been extinguishing? should she not have been extinguishing? should we not have been extinguishing? should you not have been extinguishing? should they not have been extinguishing?