English verb conjugation
SHOULD GUM

Regular verb: gum - gummed - gummed

Affirmation

Simple form	V-ing form
I should gum you should gum he should gum we should gum you should gum they should gum	I should be gumming you should be gumming he should be gumming we should be gumming you should be gumming they should be gumming
Perfect	V-ing perfect
I should have gummed you should have gummed he should have gummed we should have gummed you should have gummed they should have gummed	I should have been gumming you should have been gumming he should have been gumming we should have been gumming you should have been gumming they should have been gumming

Negation

Simple form	V-ing form
I should not gum you should not gum he should not gum we should not gum you should not gum they should not gum	I should not be gumming you should not be gumming he should not be gumming we should not be gumming you should not be gumming they should not be gumming
Perfect	V-ing perfect
I should not have gummed you should not have gummed he should not have gummed we should not have gummed you should not have gummed they should not have gummed	I should not have been gumming you should not have been gumming he should not have been gumming we should not have been gumming you should not have been gumming they should not have been gumming

Interrogative form

Simple form	V-ing form
should I gum? should you gum? should he gum? should we gum? should you gum? should they gum?	should I be gumming? should you be gumming? should he be gumming? should we be gumming? should you be gumming? should they be gumming?
Perfect	V-ing perfect
should I have gummed? should you have gummed? should he have gummed? should we have gummed? should you have gummed? should they have gummed?	should I have been gumming? should you have been gumming? should he have been gumming? should we have been gumming? should you have been gumming? should they have been gumming?

Interro-negative form

Simple form	V-ing form
should I not gum? should you not gum? should he not gum? should we not gum? should you not gum? should they not gum?	should I not be gumming? should you not be gumming? should he not be gumming? should we not be gumming? should you not be gumming? should they not be gumming?
Perfect	V-ing perfect
should I not have gummed? should you not have gummed? should he not have gummed? should we not have gummed? should you not have gummed? should they not have gummed?	should I not have been gumming? should you not have been gumming? should he not have been gumming? should we not have been gumming? should you not have been gumming? should they not have been gumming?