> If something sounds too good to be true, then it isn't. Is this an American version of the idiom? I've always heard it as "then it is", referring to the pred

> If something sounds too good to be true, then it isn't. Is this an American version of the idiom? I've always heard it as "then it is", referring to the predicate... which I think sounds natural but now I'm wondering if that was just cultural.