I can butcher you can butcher he can butcher we can butcher you can butcher they can butcher
V-ing form
I can be butchering you can be butchering he can be butchering we can be butchering you can be butchering they can be butchering
Perfect
I can have butchered you can have butchered he 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 he can have been butchering we can have been butchering you can have been butchering they can have been butchering
Negation
Simple form
I can't butcher you can't butcher he can't butcher we can't butcher you can't butcher they can't butcher
V-ing form
I can't be butchering you can't be butchering he can't be butchering we can't be butchering you can't be butchering they can't be butchering
Perfect
I can't have butchered you can't have butchered he can't have butchered we can't have butchered you can't have butchered they can't have butchered
V-ing perfect
I can't have been butchering you can't have been butchering he can't have been butchering we can't have been butchering you can't have been butchering they can't have been butchering
Interrogative form
Simple form
can I butcher? can you butcher? can he butcher? can we butcher? can you butcher? can they butcher?
V-ing form
can I be butchering? can you be butchering? can he be butchering? can we be butchering? can you be butchering? can they be butchering?
Perfect
can I have butchered? can you have butchered? can he 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 he have been butchering? can we have been butchering? can you have been butchering? can they have been butchering?
Interro-negative form
Simple form
can't I butcher? can't you butcher? can't he butcher? can't we butcher? can't you butcher? can't they butcher?
V-ing form
can't I be butchering? can't you be butchering? can't he be butchering? can't we be butchering? can't you be butchering? can't they be butchering?
Perfect
can't I have butchered? can't you have butchered? can't he have butchered? can't we have butchered? can't you have butchered? can't they have butchered?
V-ing perfect
can't I have been butchering? can't you have been butchering? can't he have been butchering? can't we have been butchering? can't you have been butchering? can't they have been butchering?