もうこれ以上決して誰も傷つけないで！って英語でなんて言うの？

You can say : "Don't hurt anyone else" "Please don't hurt anyone again!" *Anymore = If something does not happen or is not true anymore, it has stopped happening or is no longer true. *No longer/any longer = Something that is no longer the case used to be the case but is not the case now. You can also say that something is not the case any longer.

Yes you can say "Please never hurt anyone anymore." Anymore is an adverb that means to any further extent. "she refused to listen any more." Any longer usually used in negative statements to say that something that was once true or possible is not now true or possible. For example: "We can't ignore these problems any longer.I can't afford the car any longer."

Anymore' (used as an adverb) and 'any longe'r are very similar in meaning and are interchangeable: Any more as an adverb has the meaning of ‘no longer’ or ‘in the past but not now.’ In this meaning, we use it at the end of the sentence: "We don’t go to Cornwall on holiday any more/ any longer. However, in your question, anymore or any longer are unnecessary additions and do not need to be said. 'Anymore' is also a determiner like 'some' or 'some more' and in that sense, has a different meaningto 'any longer. ' "Would you like anymore potatoes?"

I'm guessing in this case that the author was heartbroken (emotional heart ache rather than physical pain). In that case, you can also say tell this person, "Please don't break any more hearts" or "Don't go around breaking people's hearts." You can also simply say, "Please don't hurt anyone else the way that you've hurt me."

When you want to express to someone that they should not hurt anyone else (like they hurt you) again, then you may express it in the following ways: -Try not to hurt anyone else anymore -Please, don't hurt anyone else again -You should not hurt anyone else like you hurt me.

You can say any of these phrases to warn someone of their emotionally abusing or hurtful actions. It is not common to say, "Please never hurt anyone anymore." It makes more sense to say, "Please never hurt someone like this again." This will show that a particular action they did to you was hurtful and should not be repeated. You use "anymore" if you are talking about quantity (a little or a lot). You can say, "I won't let you hurt me anymore." You use "any longer" when you are talking about length of time. You can say, "I won't let you hurt me any longer."

"Anymore" and "Any longer" mean almost the same thing and can be interchangeable but specifically "anymore" means from this point on and "any longer" means to stop something that you once thought was true or positive. When talking to someone you know about your feelings its better to say "anymore" because it is a little less formal and easier to understand.