I can butcher you can butcher she can butcher we can butcher you can butcher they can butcher
V-ing form
I can be butchering you can be butchering she can be butchering we can be butchering you can be butchering they can be butchering
Perfect
I can have butchered you can have butchered she can have butchered we can have butchered you can have butchered they can have butchered
V-ing perfect
I can have been butchering you can have been butchering she can have been butchering we can have been butchering you can have been butchering they can have been butchering
Negation
Simple form
I cannot butcher you cannot butcher she cannot butcher we cannot butcher you cannot butcher they cannot butcher
V-ing form
I cannot be butchering you cannot be butchering she cannot be butchering we cannot be butchering you cannot be butchering they cannot be butchering
Perfect
I cannot have butchered you cannot have butchered she cannot have butchered we cannot have butchered you cannot have butchered they cannot have butchered
V-ing perfect
I cannot have been butchering you cannot have been butchering she cannot have been butchering we cannot have been butchering you cannot have been butchering they cannot have been butchering
Interrogative form
Simple form
can I butcher? can you butcher? can she butcher? can we butcher? can you butcher? can they butcher?
V-ing form
can I be butchering? can you be butchering? can she be butchering? can we be butchering? can you be butchering? can they be butchering?
Perfect
can I have butchered? can you have butchered? can she have butchered? can we have butchered? can you have butchered? can they have butchered?
V-ing perfect
can I have been butchering? can you have been butchering? can she have been butchering? can we have been butchering? can you have been butchering? can they have been butchering?
Interro-negative form
Simple form
can I not butcher? can you not butcher? can she not butcher? can we not butcher? can you not butcher? can they not butcher?
V-ing form
can I not be butchering? can you not be butchering? can she not be butchering? can we not be butchering? can you not be butchering? can they not be butchering?
Perfect
can I not have butchered? can you not have butchered? can she not have butchered? can we not have butchered? can you not have butchered? can they not have butchered?
V-ing perfect
can I not have been butchering? can you not have been butchering? can she not have been butchering? can we not have been butchering? can you not have been butchering? can they not have been butchering?