'I bought some bread' or 'I bought any bread'?
Some is used with both countable and uncountable nouns:
Countable Nouns - 'Some people in my school like Jazz.'
Uncountable Nouns - 'There was some snow here last winter.'
Some is used in positive sentences:
'I have some friends.'
'We bought some coffee.'
We use some in questions when we expect the answer to be 'yes' or when we are offering something, otherwise, we use any:
'Would you like some milk?
Some is also used in questions when we are making a request:
'Can I borrow some money?'
Any is used in negative sentences:
'I don't have any friends.'
'There isn't any bread left.'
Any is used in questions:
'Do you have any money?'
'Is there any sugar?'