Verbo regular: underperform - underperformed - underperformed
Afirmación
Forma simple
I could underperform you could underperform she could underperform we could underperform you could underperform they could underperform
Forma con V-ing
I could be underperforming you could be underperforming she could be underperforming we could be underperforming you could be underperforming they could be underperforming
Perfecto
I could have underperformed you could have underperformed she could have underperformed we could have underperformed you could have underperformed they could have underperformed
Perfecto con V-ing
I could have been underperforming you could have been underperforming she could have been underperforming we could have been underperforming you could have been underperforming they could have been underperforming
Negación
Forma simple
I could not underperform you could not underperform she could not underperform we could not underperform you could not underperform they could not underperform
Forma con V-ing
I could not be underperforming you could not be underperforming she could not be underperforming we could not be underperforming you could not be underperforming they could not be underperforming
Perfecto
I could not have underperformed you could not have underperformed she could not have underperformed we could not have underperformed you could not have underperformed they could not have underperformed
Perfecto con V-ing
I could not have been underperforming you could not have been underperforming she could not have been underperforming we could not have been underperforming you could not have been underperforming they could not have been underperforming
Forma interrogativa
Forma simple
could I underperform? could you underperform? could she underperform? could we underperform? could you underperform? could they underperform?
Forma con V-ing
could I be underperforming? could you be underperforming? could she be underperforming? could we be underperforming? could you be underperforming? could they be underperforming?
Perfecto
could I have underperformed? could you have underperformed? could she have underperformed? could we have underperformed? could you have underperformed? could they have underperformed?
Perfecto con V-ing
could I have been underperforming? could you have been underperforming? could she have been underperforming? could we have been underperforming? could you have been underperforming? could they have been underperforming?
Forma interro-negativa
Forma simple
could I not underperform? could you not underperform? could she not underperform? could we not underperform? could you not underperform? could they not underperform?
Forma con V-ing
could I not be underperforming? could you not be underperforming? could she not be underperforming? could we not be underperforming? could you not be underperforming? could they not be underperforming?
Perfecto
could I not have underperformed? could you not have underperformed? could she not have underperformed? could we not have underperformed? could you not have underperformed? could they not have underperformed?
Perfecto con V-ing
could I not have been underperforming? could you not have been underperforming? could she not have been underperforming? could we not have been underperforming? could you not have been underperforming? could they not have been underperforming?