～ないで下(くだ)さいPlease don't (Polite request)

The ないでください form is used to make polite negative requests, similar to the English 'Please don't do [this.]' In comparison, the dictionary/non-past form of a verb + な expresses an extremely blunt or brusque command not to do something. The two forms have similar meanings (telling someone not to do something) but vary greatly in politeness level.

てください is a basic way to make a polite request, meaning 'Please do (something),' while ないでください is its negative counterpart, meaning 'Please don't do (something).' For example, 食べてください means 'Please eat (this),' while 食べないでください means 'Please don't eat (this).'

ないでください is a polite way to ask someone not to do something. It's neutral and appropriate for strangers or people of equal status. In contrast, 〜ていただけませんか is a more respectful and humble way to ask someone to do something, typically used with clients, customers, or superiors when 〜てください might sound too direct.

ないでください is a polite way to ask someone not to do something. It's neutral and appropriate for strangers or people of equal status. In contrast, てごらん is a gentle request form often used by adults to children, etc., that adds a nuance of 'Give this a try' or 'Try doing this (to see how you like it).'

ないでください is used to ask someone not to do something in a polite way. It's relatively neutral and can be used with strangers or people of equal status. In contrast, てくれる, when said with a rising question intonation, is a casual and gentle way to ask a favor from someone close, such as a friend or family member. It feels softer and more familiar than standard polite forms.

ないでください is used to ask someone not to do something in a polite way. It is relatively neutral, and could be used with strangers or people equal in status to you. In contrast, お～願う is an extremely polite and formal way to make a request, often used in professional contexts (such as to a customer or client) or formal announcements.

ないでください is a polite way to ask someone not to do something. It is relatively neutral, and could be used with strangers or people equal in status to you. In contrast, なさい is a command form, similar to the English 'Do (this),' typically used when one person is in a higher position, such as teachers to students, adults to children, etc.

ないでください is a polite way to ask someone not to do something. It's neutral and can be used with strangers or people of equal status. In contrast, お〜ください is an honorific request form used with superiors, customers, or others of higher status. Some verbs, like 食べる and 行く, have special honorific forms such as 召し上がる and いらっしゃる, which are used instead of the お〜ください structure.

ないでください is a polite way to ask someone not to do something. The shorter form, ないで, is more casual and typically used with close friends or family. While ないでください is appropriate for strangers or people of equal status, ないで has a softer, more informal tone. Adding the sentence-ending particle ね (e.g. 食べないでね) makes the request even gentler and more caring.

Both Verb[ないで] and ないでください are used to express requests not to do something. While ないでください is polite, and can be used with strangers or people equal in status to you, Verb[ないで] (without ください) is more casual, and typically used to make requests of friends or family members in a casual tone. Requests with てください and especially Verb [て] can be followed by ね (e.g. 食べてね) for a softer, more gentle feeling.