YOU SAID:

They hoped no one would see them.

INTO JAPANESE

彼らは誰も彼らを見ないことを望んでいた。

BACK INTO ENGLISH

They wanted no one to see them.

INTO JAPANESE

彼らは誰にも見られたくなかった。

BACK INTO ENGLISH

They didn't want to be seen by anyone.

INTO JAPANESE

彼らは誰にも見られたくありませんでした。

BACK INTO ENGLISH

They didn't want to be seen by anyone.