English verb conjugation
SHOULD UNDERRATE

Regular verb: underrate - underrated - underrated

Affirmation

Simple form	V-ing form
I should underrate you should underrate she should underrate we should underrate you should underrate they should underrate	I should be underrating you should be underrating she should be underrating we should be underrating you should be underrating they should be underrating
Perfect	V-ing perfect
I should have underrated you should have underrated she should have underrated we should have underrated you should have underrated they should have underrated	I should have been underrating you should have been underrating she should have been underrating we should have been underrating you should have been underrating they should have been underrating

Negation

Simple form	V-ing form
I should not underrate you should not underrate she should not underrate we should not underrate you should not underrate they should not underrate	I should not be underrating you should not be underrating she should not be underrating we should not be underrating you should not be underrating they should not be underrating
Perfect	V-ing perfect
I should not have underrated you should not have underrated she should not have underrated we should not have underrated you should not have underrated they should not have underrated	I should not have been underrating you should not have been underrating she should not have been underrating we should not have been underrating you should not have been underrating they should not have been underrating

Interrogative form

Simple form	V-ing form
should I underrate? should you underrate? should she underrate? should we underrate? should you underrate? should they underrate?	should I be underrating? should you be underrating? should she be underrating? should we be underrating? should you be underrating? should they be underrating?
Perfect	V-ing perfect
should I have underrated? should you have underrated? should she have underrated? should we have underrated? should you have underrated? should they have underrated?	should I have been underrating? should you have been underrating? should she have been underrating? should we have been underrating? should you have been underrating? should they have been underrating?

Interro-negative form

Simple form	V-ing form
should I not underrate? should you not underrate? should she not underrate? should we not underrate? should you not underrate? should they not underrate?	should I not be underrating? should you not be underrating? should she not be underrating? should we not be underrating? should you not be underrating? should they not be underrating?
Perfect	V-ing perfect
should I not have underrated? should you not have underrated? should she not have underrated? should we not have underrated? should you not have underrated? should they not have underrated?	should I not have been underrating? should you not have been underrating? should she not have been underrating? should we not have been underrating? should you not have been underrating? should they not have been underrating?