YOU SAID:

It's a shame they use other people's work without properly crediting them

INTO JAPANESE

彼らが他の人の作品を適切にクレジットせずに使用するのは残念です

BACK INTO ENGLISH

It's a shame they use someone else's work without proper credit

INTO JAPANESE

彼らが適切なクレジットなしで他の誰かの作品を使用するのは残念です

BACK INTO ENGLISH

It's a shame they use someone else's work without proper credit