English verb conjugation
COULD OUTPERFORM

Regular verb: outperform - outperformed - outperformed

Affirmation

Simple form	V-ing form
I could outperform you could outperform he could outperform we could outperform you could outperform they could outperform	I could be outperforming you could be outperforming he could be outperforming we could be outperforming you could be outperforming they could be outperforming
Perfect	V-ing perfect
I could have outperformed you could have outperformed he could have outperformed we could have outperformed you could have outperformed they could have outperformed	I could have been outperforming you could have been outperforming he could have been outperforming we could have been outperforming you could have been outperforming they could have been outperforming

Negation

Simple form	V-ing form
I could not outperform you could not outperform he could not outperform we could not outperform you could not outperform they could not outperform	I could not be outperforming you could not be outperforming he could not be outperforming we could not be outperforming you could not be outperforming they could not be outperforming
Perfect	V-ing perfect
I could not have outperformed you could not have outperformed he could not have outperformed we could not have outperformed you could not have outperformed they could not have outperformed	I could not have been outperforming you could not have been outperforming he could not have been outperforming we could not have been outperforming you could not have been outperforming they could not have been outperforming

Interrogative form

Simple form	V-ing form
could I outperform? could you outperform? could he outperform? could we outperform? could you outperform? could they outperform?	could I be outperforming? could you be outperforming? could he be outperforming? could we be outperforming? could you be outperforming? could they be outperforming?
Perfect	V-ing perfect
could I have outperformed? could you have outperformed? could he have outperformed? could we have outperformed? could you have outperformed? could they have outperformed?	could I have been outperforming? could you have been outperforming? could he have been outperforming? could we have been outperforming? could you have been outperforming? could they have been outperforming?

Interro-negative form

Simple form	V-ing form
could I not outperform? could you not outperform? could he not outperform? could we not outperform? could you not outperform? could they not outperform?	could I not be outperforming? could you not be outperforming? could he not be outperforming? could we not be outperforming? could you not be outperforming? could they not be outperforming?
Perfect	V-ing perfect
could I not have outperformed? could you not have outperformed? could he not have outperformed? could we not have outperformed? could you not have outperformed? could they not have outperformed?	could I not have been outperforming? could you not have been outperforming? could he not have been outperforming? could we not have been outperforming? could you not have been outperforming? could they not have been outperforming?