Use “a” instead of ‘an’ if the following word doesn’t start with a vowel sound, e.g. ‘a sentence’, ‘a university’. (EN_A_VS_AN) Suggestions: `a` URL: https://languagetool.org/insights/post/indefinite-articles/ Rule: https://community.languagetool.org/rule/show/EN_A_VS_AN?lang=en-US Category: MISC