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