Some or Any
"Some" and "any" are determiners. They describe an amount or type of something. They are often used before plural countable nouns when the exact amount is not known or is not important. "Some" and "any" are also used before uncountable nouns. They cannot be used for singular nouns because both "some" and "any" mean more than one or an uncountable amount. This grammar structure is easy to memorize. The exercises below will help you practice "some" versus "any."
There are a few general rules:
Some: We use "some" with positive sentences ("I'll have some coffee"), offers ("Do you want some coffee?") and requests ("Can I have some coffee?")
Any: We generally use "any" with negative sentences ("I don't want any coffee") and questions that are not offers or requests ("Do you have any coffee?")