I can hammer you can hammer she can hammer we can hammer you can hammer they can hammer
Forma con V-ing
I can be hammering you can be hammering she can be hammering we can be hammering you can be hammering they can be hammering
Perfecto
I can have hammered you can have hammered she can have hammered we can have hammered you can have hammered they can have hammered
Perfecto con V-ing
I can have been hammering you can have been hammering she can have been hammering we can have been hammering you can have been hammering they can have been hammering
Negación
Forma simple
I cannot hammer you cannot hammer she cannot hammer we cannot hammer you cannot hammer they cannot hammer
Forma con V-ing
I cannot be hammering you cannot be hammering she cannot be hammering we cannot be hammering you cannot be hammering they cannot be hammering
Perfecto
I cannot have hammered you cannot have hammered she cannot have hammered we cannot have hammered you cannot have hammered they cannot have hammered
Perfecto con V-ing
I cannot have been hammering you cannot have been hammering she cannot have been hammering we cannot have been hammering you cannot have been hammering they cannot have been hammering
Forma interrogativa
Forma simple
can I hammer? can you hammer? can she hammer? can we hammer? can you hammer? can they hammer?
Forma con V-ing
can I be hammering? can you be hammering? can she be hammering? can we be hammering? can you be hammering? can they be hammering?
Perfecto
can I have hammered? can you have hammered? can she have hammered? can we have hammered? can you have hammered? can they have hammered?
Perfecto con V-ing
can I have been hammering? can you have been hammering? can she have been hammering? can we have been hammering? can you have been hammering? can they have been hammering?
Forma interro-negativa
Forma simple
can I not hammer? can you not hammer? can she not hammer? can we not hammer? can you not hammer? can they not hammer?
Forma con V-ing
can I not be hammering? can you not be hammering? can she not be hammering? can we not be hammering? can you not be hammering? can they not be hammering?
Perfecto
can I not have hammered? can you not have hammered? can she not have hammered? can we not have hammered? can you not have hammered? can they not have hammered?
Perfecto con V-ing
can I not have been hammering? can you not have been hammering? can she not have been hammering? can we not have been hammering? can you not have been hammering? can they not have been hammering?