English verb conjugation
SHOULD ATTEND

Regular verb: attend - attended - attended

Affirmation

Simple form	V-ing form
I should attend you should attend he should attend we should attend you should attend they should attend	I should be attending you should be attending he should be attending we should be attending you should be attending they should be attending
Perfect	V-ing perfect
I should have attended you should have attended he should have attended we should have attended you should have attended they should have attended	I should have been attending you should have been attending he should have been attending we should have been attending you should have been attending they should have been attending

Negation

Simple form	V-ing form
I should not attend you should not attend he should not attend we should not attend you should not attend they should not attend	I should not be attending you should not be attending he should not be attending we should not be attending you should not be attending they should not be attending
Perfect	V-ing perfect
I should not have attended you should not have attended he should not have attended we should not have attended you should not have attended they should not have attended	I should not have been attending you should not have been attending he should not have been attending we should not have been attending you should not have been attending they should not have been attending

Interrogative form

Simple form	V-ing form
should I attend? should you attend? should he attend? should we attend? should you attend? should they attend?	should I be attending? should you be attending? should he be attending? should we be attending? should you be attending? should they be attending?
Perfect	V-ing perfect
should I have attended? should you have attended? should he have attended? should we have attended? should you have attended? should they have attended?	should I have been attending? should you have been attending? should he have been attending? should we have been attending? should you have been attending? should they have been attending?

Interro-negative form

Simple form	V-ing form
should I not attend? should you not attend? should he not attend? should we not attend? should you not attend? should they not attend?	should I not be attending? should you not be attending? should he not be attending? should we not be attending? should you not be attending? should they not be attending?
Perfect	V-ing perfect
should I not have attended? should you not have attended? should he not have attended? should we not have attended? should you not have attended? should they not have attended?	should I not have been attending? should you not have been attending? should he not have been attending? should we not have been attending? should you not have been attending? should they not have been attending?