As far as I know, "any more" can only be used at the end of negative or interrogative sentences. But I can find a negative meaning of sentences with "stop" as the main verb, it is correct, isn't it. So could you please tell me if we can say "stop doing something more" or "stop doing something any more"?
Thank you very much!
No.
Don't do that any more.
Stop doing that.
I'm not going to eat junk food any more.
I'm going to stop eating junk food.
I hope they don't make any more Star Wars films.
I hope they stop making Star Wars films.
Don't you love me any more?
Do you still love me?
As you can see, "any more" only appears in the negative forms above.
No matter how little or how much someone is doing something. 'Stop doing that' is absolute.
You can weaken it, with an expression such as: I'd like you not to do that (any more), please, but you cannot really emphasise it, except by saying the word very firmly, shouting it, or adding some threat, implied or real:
I'm not going to tell you again to stop doing that.
If you do that again, I'll break your **#$#* neck!