I could better you could better she could better we could better you could better they could better
Forma con V-ing
I could be bettering you could be bettering she could be bettering we could be bettering you could be bettering they could be bettering
Perfecto
I could have bettered you could have bettered she could have bettered we could have bettered you could have bettered they could have bettered
Perfecto con V-ing
I could have been bettering you could have been bettering she could have been bettering we could have been bettering you could have been bettering they could have been bettering
Negación
Forma simple
I could not better you could not better she could not better we could not better you could not better they could not better
Forma con V-ing
I could not be bettering you could not be bettering she could not be bettering we could not be bettering you could not be bettering they could not be bettering
Perfecto
I could not have bettered you could not have bettered she could not have bettered we could not have bettered you could not have bettered they could not have bettered
Perfecto con V-ing
I could not have been bettering you could not have been bettering she could not have been bettering we could not have been bettering you could not have been bettering they could not have been bettering
Forma interrogativa
Forma simple
could I better? could you better? could she better? could we better? could you better? could they better?
Forma con V-ing
could I be bettering? could you be bettering? could she be bettering? could we be bettering? could you be bettering? could they be bettering?
Perfecto
could I have bettered? could you have bettered? could she have bettered? could we have bettered? could you have bettered? could they have bettered?
Perfecto con V-ing
could I have been bettering? could you have been bettering? could she have been bettering? could we have been bettering? could you have been bettering? could they have been bettering?
Forma interro-negativa
Forma simple
could I not better? could you not better? could she not better? could we not better? could you not better? could they not better?
Forma con V-ing
could I not be bettering? could you not be bettering? could she not be bettering? could we not be bettering? could you not be bettering? could they not be bettering?
Perfecto
could I not have bettered? could you not have bettered? could she not have bettered? could we not have bettered? could you not have bettered? could they not have bettered?
Perfecto con V-ing
could I not have been bettering? could you not have been bettering? could she not have been bettering? could we not have been bettering? could you not have been bettering? could they not have been bettering?