しようと努めた

tried to

→ 為る
phrase Rare #41,755
tried to Used to describe making an effort or striving to do something. The verb before と is in the volitional form.
JA: 彼は問題を解決しようと努めた。
EN: He tried to solve the problem.

彼はその手紙に注意を集中しようと努めた

He tried to concentrate on the letter.

被告人は自分の行為を正当化しようと努めた

The defendant tried to justify his actions.

彼女は自分をうまく表現しようと努めた

She tried hard to express herself well.

お手伝いさんたちは主人命令を実行しようと努めた

The servants tried to carry out their master's orders.