Uncountable nouns don’t take plurals or “a/an” Words like advice, information, luggage stay singular. Example: “She gave me good advice,” not “an advice” or “advices.” Uncountable nouns, also known as mass nouns, represent substances, concepts, or qualities that cannot be easily divided into separate units, so they follow specific grammatical rules in English. Core Rule Explanation Uncountable nouns stay in their base singular form without adding "-s" or "-es" for plural, as they are not viewed as countable items. They also cannot pair with indefinite articles "a" or "an," which apply only to singular countable nouns. Instead, use quantifiers like "some," "much," "a little," or "a lot of" to indicate amount. Everyday Examples Liquids and foods : water (some water), milk (much milk), rice (a lot of rice), sugar (a little sugar), bread (some bread). Abstract ideas : information (too much infor...