Remember that some nouns are uncountable and dont take an s in almost all sentences. Other nouns, like person, don't use an s to become plural. Person changes to people. For countable nouns that use s: With a question or negative sentence you use an s. Example: Are there any cups? There aren't any cups. When you have a choice of items and don't care whi home you get you use the singlular noun: A: Give me a cup. B: Which one? A: Any cup. Sometimes the plural and singular can both be used: Any gift put on the table will be opened. Any gifts put on the table will be opened.

Hi Lilith, When you ask a question with "any" about the existence of things, you generally use the plural: "Do you have any books?" You are asking if the person has even one (but maybe more) books. You can also use it to ask about uncountable things: "Do you have any milk?" Because "milk" is uncountable, we don't generally use a plural form like "milks". You can use "any" with a singular noun when you emphasize that you are not referring to one particular thing: "When I said I don't like your family, I wasn't talking about any particular relative of yours. I just don't like any of them." And you can use "any" with a singular noun when you are emphasizing a wide range of choices: "You can choose any book you like from the library." Or: "Can I really visit you at any hour of the day?" I hope this helps to answer your question.

Any may be used as a singular or a plural pronoun, depending on whether it refers to “at least one” or “one or more.” You may use either a singular verb like is or a plural verb like are with any (although use of the plural is more common). As a determiner, any is generally followed by uncountable and plural countable nouns in questions and negative statements. Is there any water left in the bottle? (Uncountable) Does she have any enemies? (Plural countable) I don’t have any water. (Uncountable) She doesn’t have any enemies.(Plural countable) With singular countable nouns, use a/an rather than any. Have you ever eaten an apple? I have never eaten an apple. But note that any may be used with a singular countable noun to lend emphasis or to mean “it does not matter which.” Do you have any idea what you have done? Any car will do.