How do you know if a noun is countable or uncountable?

[newbornbaby]

I really don't get the first part. However, I do think it is better to work on things you need help with and not things you already understand.

I have a reason to write those things, but my English is not good enough to explain why. So don't worry about that. Thank you for explaining the above words.

 

[Tarheel]

@newbornbaby Of course you have a reason or you wouldn't do it.

I think your English is pretty good -- and getting better!