Conjugaison du verbe anglais
COULD UNDERPERFORM

Verbe régulier : underperform - underperformed - underperformed
Traduction française : rester en deçà de ses possibilités

Affirmation

Forme simple	Forme en V-ing
I could underperform you could underperform he could underperform we could underperform you could underperform they could underperform	I could be underperforming you could be underperforming he could be underperforming we could be underperforming you could be underperforming they could be underperforming
Perfect	Perfect en V-ing
I could have underperformed you could have underperformed he could have underperformed we could have underperformed you could have underperformed they could have underperformed	I could have been underperforming you could have been underperforming he could have been underperforming we could have been underperforming you could have been underperforming they could have been underperforming

Négation

Forme simple	Forme en V-ing
I couldn't underperform you couldn't underperform he couldn't underperform we couldn't underperform you couldn't underperform they couldn't underperform	I couldn't be underperforming you couldn't be underperforming he couldn't be underperforming we couldn't be underperforming you couldn't be underperforming they couldn't be underperforming
Perfect	Perfect en V-ing
I couldn't have underperformed you couldn't have underperformed he couldn't have underperformed we couldn't have underperformed you couldn't have underperformed they couldn't have underperformed	I couldn't have been underperforming you couldn't have been underperforming he couldn't have been underperforming we couldn't have been underperforming you couldn't have been underperforming they couldn't have been underperforming

Forme interrogative

Forme simple	Forme en V-ing
could I underperform? could you underperform? could he underperform? could we underperform? could you underperform? could they underperform?	could I be underperforming? could you be underperforming? could he be underperforming? could we be underperforming? could you be underperforming? could they be underperforming?
Perfect	Perfect en V-ing
could I have underperformed? could you have underperformed? could he have underperformed? could we have underperformed? could you have underperformed? could they have underperformed?	could I have been underperforming? could you have been underperforming? could he have been underperforming? could we have been underperforming? could you have been underperforming? could they have been underperforming?

Forme interro-négative

Forme simple	Forme en V-ing
couldn't I underperform? couldn't you underperform? couldn't he underperform? couldn't we underperform? couldn't you underperform? couldn't they underperform?	couldn't I be underperforming? couldn't you be underperforming? couldn't he be underperforming? couldn't we be underperforming? couldn't you be underperforming? couldn't they be underperforming?
Perfect	Perfect en V-ing
couldn't I have underperformed? couldn't you have underperformed? couldn't he have underperformed? couldn't we have underperformed? couldn't you have underperformed? couldn't they have underperformed?	couldn't I have been underperforming? couldn't you have been underperforming? couldn't he have been underperforming? couldn't we have been underperforming? couldn't you have been underperforming? couldn't they have been underperforming?