English verb conjugation
SHOULD SCUM

Regular verb: scum - scummed - scummed

Affirmation

Simple form	V-ing form
I should scum you should scum he should scum we should scum you should scum they should scum	I should be scumming you should be scumming he should be scumming we should be scumming you should be scumming they should be scumming
Perfect	V-ing perfect
I should have scummed you should have scummed he should have scummed we should have scummed you should have scummed they should have scummed	I should have been scumming you should have been scumming he should have been scumming we should have been scumming you should have been scumming they should have been scumming

Negation

Simple form	V-ing form
I should not scum you should not scum he should not scum we should not scum you should not scum they should not scum	I should not be scumming you should not be scumming he should not be scumming we should not be scumming you should not be scumming they should not be scumming
Perfect	V-ing perfect
I should not have scummed you should not have scummed he should not have scummed we should not have scummed you should not have scummed they should not have scummed	I should not have been scumming you should not have been scumming he should not have been scumming we should not have been scumming you should not have been scumming they should not have been scumming

Interrogative form

Simple form	V-ing form
should I scum? should you scum? should he scum? should we scum? should you scum? should they scum?	should I be scumming? should you be scumming? should he be scumming? should we be scumming? should you be scumming? should they be scumming?
Perfect	V-ing perfect
should I have scummed? should you have scummed? should he have scummed? should we have scummed? should you have scummed? should they have scummed?	should I have been scumming? should you have been scumming? should he have been scumming? should we have been scumming? should you have been scumming? should they have been scumming?

Interro-negative form

Simple form	V-ing form
should I not scum? should you not scum? should he not scum? should we not scum? should you not scum? should they not scum?	should I not be scumming? should you not be scumming? should he not be scumming? should we not be scumming? should you not be scumming? should they not be scumming?
Perfect	V-ing perfect
should I not have scummed? should you not have scummed? should he not have scummed? should we not have scummed? should you not have scummed? should they not have scummed?	should I not have been scumming? should you not have been scumming? should he not have been scumming? should we not have been scumming? should you not have been scumming? should they not have been scumming?