English verb conjugation
SHOULD CHANGE

Regular verb: change - changed - changed

Affirmation

Simple form	V-ing form
I should change you should change she should change we should change you should change they should change	I should be changing you should be changing she should be changing we should be changing you should be changing they should be changing
Perfect	V-ing perfect
I should have changed you should have changed she should have changed we should have changed you should have changed they should have changed	I should have been changing you should have been changing she should have been changing we should have been changing you should have been changing they should have been changing

Negation

Simple form	V-ing form
I should not change you should not change she should not change we should not change you should not change they should not change	I should not be changing you should not be changing she should not be changing we should not be changing you should not be changing they should not be changing
Perfect	V-ing perfect
I should not have changed you should not have changed she should not have changed we should not have changed you should not have changed they should not have changed	I should not have been changing you should not have been changing she should not have been changing we should not have been changing you should not have been changing they should not have been changing

Interrogative form

Simple form	V-ing form
should I change? should you change? should she change? should we change? should you change? should they change?	should I be changing? should you be changing? should she be changing? should we be changing? should you be changing? should they be changing?
Perfect	V-ing perfect
should I have changed? should you have changed? should she have changed? should we have changed? should you have changed? should they have changed?	should I have been changing? should you have been changing? should she have been changing? should we have been changing? should you have been changing? should they have been changing?

Interro-negative form

Simple form	V-ing form
should I not change? should you not change? should she not change? should we not change? should you not change? should they not change?	should I not be changing? should you not be changing? should she not be changing? should we not be changing? should you not be changing? should they not be changing?
Perfect	V-ing perfect
should I not have changed? should you not have changed? should she not have changed? should we not have changed? should you not have changed? should they not have changed?	should I not have been changing? should you not have been changing? should she not have been changing? should we not have been changing? should you not have been changing? should they not have been changing?