shouldn't

== English == === Etymology === From should + -n't. === Pronunciation === (UK) IPA(key): /ˈʃʊdn̩t/ (Yorkshire) IPA(key): [ˈʃʊnʔ] === Verb === shouldn't Should not (negative auxiliary) ==== Usage notes ==== Although shouldn't is derived from should not, the two are not grammatically interchangeable. While "Shouldn't I do it?" is grammatical, "Should not I do it?" is no longer acceptable. It would instead be "Should I not do it?" ==== Coordinate terms ==== can't, couldn't, mayn't, mightn't, oughtn't, shan't, won't, wouldn't ==== Derived terms ==== shouldn't've ==== Translations ==== === Noun === shouldn't (plural shouldn'ts) (informal) Something that should not be done. === See also === couldn't wouldn't oughtn't Appendix:English modal verbs Appendix:English tag questions === References ===