Verbo regular: underperform - underperformed - underperformed
Forma simple | Forma com V-ing |
I could underperform you could underperform she could underperform we could underperform you could underperform they could underperform | I could be underperforming you could be underperforming she could be underperforming we could be underperforming you could be underperforming they could be underperforming |
Perfeito | Perfeito com V-ing |
I could have underperformed you could have underperformed she 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 she could have been underperforming we could have been underperforming you could have been underperforming they could have been underperforming |
Forma simple | Forma com V-ing |
I could not underperform you could not underperform she could not underperform we could not underperform you could not underperform they could not underperform | 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 |
Perfeito | Perfeito com V-ing |
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 | 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 simple | Forma com V-ing |
could I underperform? could you underperform? could she underperform? could we underperform? could you underperform? could they underperform? | could I be underperforming? could you be underperforming? could she be underperforming? could we be underperforming? could you be underperforming? could they be underperforming? |
Perfeito | Perfeito com V-ing |
could I have underperformed? could you have underperformed? could she 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 she have been underperforming? could we have been underperforming? could you have been underperforming? could they have been underperforming? |
Forma simple | Forma com V-ing |
could I not underperform? could you not underperform? could she not underperform? could we not underperform? could you not underperform? could they not underperform? | 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? |
Perfeito | Perfeito com V-ing |
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? | 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? |