Hello,
I am a new member of this forum. I am very courious about many aspect of English language and I really want to use it correctly. So, I'm going to ask you lots of questions! I hope you enjoy being kept busy with writing answers

I'd like to ask you to correct every single error I make (if you are patient enough to do so, of course

).
This is my first question:
Are the articles in this sentence used correctly?
I threw a stone at a window yesterday. (I don't think of any particular window, just a window in general meaning).
Thanks