ないでください

ないでください is used to politely ask someone not to do a certain action. It comes from the negative form of the verb (the ない form) plus でください. This is commonly used in public or formal contexts, such as signs, instructions, or when speaking to strangers or people you don’t know well. It softens the request compared to a blunt command. Example sentences: ここで写真を撮らないでください。 (Please don’t take photos here.) 近づかないでください。 (Please don’t come closer.)