Dictionary / Vocabulary / 最善を尽くす
さいぜんをつくす
to do one's best; to do something to the best of one's ability
Also written 最善をつくす
彼らは自分の最善を尽くすことが大切だ。
It is important for them to do their best.
彼は最善を尽くすだろう。
He would do his best.
彼がいつ来るかわからないが、来れば最善を尽くすだろう。
I cannot tell when he will come, but when he comes, he will do his best.