Nouns can be either countable or uncountable. We cannot make plurals with uncountable nouns. We use
‘some’ before plurals and uncountable nouns.
Chairs, tables, sofas
Euros, dollars, pounds
Clouds, temperatures, winds
Articles, reports, stories
An apple, an orange, a banana, a pear= Some fruit
A dollar Some money
Siobhan has some money Yann doesn’t have any money
We usually use some in positive sentences, and any in negative sentences and questions.
John: I have some friends in Chicago
Ian: Really, do you have any friends in Chicago, Sean?
Sean: I haven’t got any friends, anywhere.
It is different when we offer something:
Would you like some tea?