I should underperform you should underperform he should underperform we should underperform you should underperform they should underperform
V-ing form
I should be underperforming you should be underperforming he should be underperforming we should be underperforming you should be underperforming they should be underperforming
Perfect
I should have underperformed you should have underperformed he should have underperformed we should have underperformed you should have underperformed they should have underperformed
V-ing perfect
I should have been underperforming you should have been underperforming he should have been underperforming we should have been underperforming you should have been underperforming they should have been underperforming
Negation
Simple form
I should not underperform you should not underperform he should not underperform we should not underperform you should not underperform they should not underperform
V-ing form
I should not be underperforming you should not be underperforming he should not be underperforming we should not be underperforming you should not be underperforming they should not be underperforming
Perfect
I should not have underperformed you should not have underperformed he should not have underperformed we should not have underperformed you should not have underperformed they should not have underperformed
V-ing perfect
I should not have been underperforming you should not have been underperforming he should not have been underperforming we should not have been underperforming you should not have been underperforming they should not have been underperforming
Interrogative form
Simple form
should I underperform? should you underperform? should he underperform? should we underperform? should you underperform? should they underperform?
V-ing form
should I be underperforming? should you be underperforming? should he be underperforming? should we be underperforming? should you be underperforming? should they be underperforming?
Perfect
should I have underperformed? should you have underperformed? should he have underperformed? should we have underperformed? should you have underperformed? should they have underperformed?
V-ing perfect
should I have been underperforming? should you have been underperforming? should he have been underperforming? should we have been underperforming? should you have been underperforming? should they have been underperforming?
Interro-negative form
Simple form
should I not underperform? should you not underperform? should he not underperform? should we not underperform? should you not underperform? should they not underperform?
V-ing form
should I not be underperforming? should you not be underperforming? should he not be underperforming? should we not be underperforming? should you not be underperforming? should they not be underperforming?
Perfect
should I not have underperformed? should you not have underperformed? should he not have underperformed? should we not have underperformed? should you not have underperformed? should they not have underperformed?
V-ing perfect
should I not have been underperforming? should you not have been underperforming? should he not have been underperforming? should we not have been underperforming? should you not have been underperforming? should they not have been underperforming?