English verb conjugation
SHOULD RACK

Regular verb: rack - racked - racked

Affirmation

Simple form	V-ing form
I should rack you should rack she should rack we should rack you should rack they should rack	I should be racking you should be racking she should be racking we should be racking you should be racking they should be racking
Perfect	V-ing perfect
I should have racked you should have racked she should have racked we should have racked you should have racked they should have racked	I should have been racking you should have been racking she should have been racking we should have been racking you should have been racking they should have been racking

Negation

Simple form	V-ing form
I should not rack you should not rack she should not rack we should not rack you should not rack they should not rack	I should not be racking you should not be racking she should not be racking we should not be racking you should not be racking they should not be racking
Perfect	V-ing perfect
I should not have racked you should not have racked she should not have racked we should not have racked you should not have racked they should not have racked	I should not have been racking you should not have been racking she should not have been racking we should not have been racking you should not have been racking they should not have been racking

Interrogative form

Simple form	V-ing form
should I rack? should you rack? should she rack? should we rack? should you rack? should they rack?	should I be racking? should you be racking? should she be racking? should we be racking? should you be racking? should they be racking?
Perfect	V-ing perfect
should I have racked? should you have racked? should she have racked? should we have racked? should you have racked? should they have racked?	should I have been racking? should you have been racking? should she have been racking? should we have been racking? should you have been racking? should they have been racking?

Interro-negative form

Simple form	V-ing form
should I not rack? should you not rack? should she not rack? should we not rack? should you not rack? should they not rack?	should I not be racking? should you not be racking? should she not be racking? should we not be racking? should you not be racking? should they not be racking?
Perfect	V-ing perfect
should I not have racked? should you not have racked? should she not have racked? should we not have racked? should you not have racked? should they not have racked?	should I not have been racking? should you not have been racking? should she not have been racking? should we not have been racking? should you not have been racking? should they not have been racking?