置かないで

don't put, don't leave

→ 置く
置か put, place + ない negative + Conjunctive marker
verb · imperative Rare #34,835
don't put, don't leave
JA: ここに荷物を置かないで。
EN: Don't leave your luggage here.
Conjugation of 置く

テーブルのグラスを置かないで下さい

Please don't place the glass near the edge of the table.

あれほどベッドの下にフィルム置かないでって言ったのに

I told you not to put film under the bed!

— ニュー・シネマ・パラダイス (1988)

テーブルの端っこグラスを置かないで

Don't put the glass near the edge of the table.

その箱の上に何も置かないで下さい

Please don't put anything on top of that box.

大切なものはここに置かないで下さい

Please do not leave anything valuable here.