I could fence you could fence he could fence we could fence you could fence they could fence
Forma con V-ing
I could be fencing you could be fencing he could be fencing we could be fencing you could be fencing they could be fencing
Perfecto
I could have fenced you could have fenced he could have fenced we could have fenced you could have fenced they could have fenced
Perfecto con V-ing
I could have been fencing you could have been fencing he could have been fencing we could have been fencing you could have been fencing they could have been fencing
Negación
Forma simple
I could not fence you could not fence he could not fence we could not fence you could not fence they could not fence
Forma con V-ing
I could not be fencing you could not be fencing he could not be fencing we could not be fencing you could not be fencing they could not be fencing
Perfecto
I could not have fenced you could not have fenced he could not have fenced we could not have fenced you could not have fenced they could not have fenced
Perfecto con V-ing
I could not have been fencing you could not have been fencing he could not have been fencing we could not have been fencing you could not have been fencing they could not have been fencing
Forma interrogativa
Forma simple
could I fence? could you fence? could he fence? could we fence? could you fence? could they fence?
Forma con V-ing
could I be fencing? could you be fencing? could he be fencing? could we be fencing? could you be fencing? could they be fencing?
Perfecto
could I have fenced? could you have fenced? could he have fenced? could we have fenced? could you have fenced? could they have fenced?
Perfecto con V-ing
could I have been fencing? could you have been fencing? could he have been fencing? could we have been fencing? could you have been fencing? could they have been fencing?
Forma interro-negativa
Forma simple
could I not fence? could you not fence? could he not fence? could we not fence? could you not fence? could they not fence?
Forma con V-ing
could I not be fencing? could you not be fencing? could he not be fencing? could we not be fencing? could you not be fencing? could they not be fencing?
Perfecto
could I not have fenced? could you not have fenced? could he not have fenced? could we not have fenced? could you not have fenced? could they not have fenced?
Perfecto con V-ing
could I not have been fencing? could you not have been fencing? could he not have been fencing? could we not have been fencing? could you not have been fencing? could they not have been fencing?