を改めた

changed

→ を
phrase Rare #29,293
changed Used after a noun to say that someone changed, revised, or improved it. 改めた is the plain past form of 改める.
JA: 彼女は生活習慣を改めた。
EN: She changed her lifestyle.

ユーニス態度を改めたほうがいい

Eunice, you should change your attitude.

— アイム・スティル・ヒア (2024)

彼は生き方を改めた

He changed his way of life.

彼らはその制度を改めた

They reformed the system.

どうして考えを改めたのですか

Why did you change your mind?