*Some and any go before uncountable nouns or plural countable nouns.
*Some is used in positive sentences but any is used in negative sentences.
EX:There is some water on the table.
EX:There are some apples in the fridge.
EX:There isn't any water on the table.
EX:There aren't any apples in the fridge.
*We always use any in questions:
EX:Is there any soup in the bowl?
EX:Are there any oranges in the fridge?
EX:Did you buy any vegetables?
*But if we expect the answer is yes,we use some not any:
EX:Did you buy some clothes yesterday?(Here i know that he/she went to buy some clothes)
*We also use some in offers or requests:
EX:Would you like some tea? (offer)
EX:Can you give some water,please? (request)
*We use any in positive sentences as follows:
EX:Any one can show you the way to the metro.
EX:You may find it at any supermarket.
*We use any with conditional clauses:
EX:If you saw any one of them,call me.