The majority of modern Indo-European languages, including modern English, however, have lost dual through their development and only show residual traces of it. In all these languages, its function has been replaced by simple plural, as is evident in the English distinctions: "both" vs. "all", "either" vs. "any", "neither" vs. "none", and so on. A commonly used sentence to exemplify dual in English is ""Both go to the same school."" where "both" refers to two specific people who had already been determined in the conversation.