I think not

== English == === Pronunciation === === Phrase === I think not (formal) Synonym of I don't think so. === Further reading === “I think not”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present. “I think not”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present. “I think not” in Longman Dictionary of Contemporary English, Longman.