知らせてくれ

let me know

→ 知らせる
phrase Uncommon #18,108
let me know A casual, direct request to have someone inform you; in other forms, it can describe someone informing you or someone else.
JA: 予定が決まったら知らせてくれ。
EN: Let me know when the plans are decided.

彼が帰ってきたらすぐに私に知らせてくれ。

Let me know as soon as he gets back.

何かわかったら知らせてくれ

Let me know if you find out anything.

— エリート・スクワッド ブラジル特殊部隊BOPE (2010)

家に帰る時間を知らせてくれ。

Let me know what time you'll be home.