I might underperform you might underperform he might underperform we might underperform you might underperform they might underperform
V-ing form
I might be underperforming you might be underperforming he might be underperforming we might be underperforming you might be underperforming they might be underperforming
Perfect
I might have underperformed you might have underperformed he might have underperformed we might have underperformed you might have underperformed they might have underperformed
V-ing perfect
I might have been underperforming you might have been underperforming he might have been underperforming we might have been underperforming you might have been underperforming they might have been underperforming
Negation
Simple form
I mightn't underperform you mightn't underperform he mightn't underperform we mightn't underperform you mightn't underperform they mightn't underperform
V-ing form
I mightn't be underperforming you mightn't be underperforming he mightn't be underperforming we mightn't be underperforming you mightn't be underperforming they mightn't be underperforming
Perfect
I mightn't have underperformed you mightn't have underperformed he mightn't have underperformed we mightn't have underperformed you mightn't have underperformed they mightn't have underperformed
V-ing perfect
I mightn't have been underperforming you mightn't have been underperforming he mightn't have been underperforming we mightn't have been underperforming you mightn't have been underperforming they mightn't have been underperforming
Interrogative form
Simple form
might I underperform? might you underperform? might he underperform? might we underperform? might you underperform? might they underperform?
V-ing form
might I be underperforming? might you be underperforming? might he be underperforming? might we be underperforming? might you be underperforming? might they be underperforming?
Perfect
might I have underperformed? might you have underperformed? might he have underperformed? might we have underperformed? might you have underperformed? might they have underperformed?
V-ing perfect
might I have been underperforming? might you have been underperforming? might he have been underperforming? might we have been underperforming? might you have been underperforming? might they have been underperforming?
Interro-negative form
Simple form
mightn't I underperform? mightn't you underperform? mightn't he underperform? mightn't we underperform? mightn't you underperform? mightn't they underperform?
V-ing form
mightn't I be underperforming? mightn't you be underperforming? mightn't he be underperforming? mightn't we be underperforming? mightn't you be underperforming? mightn't they be underperforming?
Perfect
mightn't I have underperformed? mightn't you have underperformed? mightn't he have underperformed? mightn't we have underperformed? mightn't you have underperformed? mightn't they have underperformed?
V-ing perfect
mightn't I have been underperforming? mightn't you have been underperforming? mightn't he have been underperforming? mightn't we have been underperforming? mightn't you have been underperforming? mightn't they have been underperforming?