手てを尽つくす

expression, godan verb (-su)

try every possible means; do everything one can

Used when someone exhausts all available methods or resources to achieve something, often in difficult situations.

• 彼かれは手てを尽つくして問もん題だいを解かい決けつしようとした。

  He tried every possible means to solve the problem.

• 手てを尽つくしたが、結けっ局きょく失しっ敗ぱいに終おわった。

  We did everything we could, but it ended in failure.