YOU SAID:

Chris is a lad for doing the project

INTO JAPANESE

クリスはプロジェクトをやってくれた若者です

BACK INTO ENGLISH

Chris is the young man who did the project

INTO JAPANESE

クリスはプロジェクトをした若い男です

BACK INTO ENGLISH

Chris is a young man who did the project

INTO JAPANESE

クリスはプロジェクトをやった若い男です

BACK INTO ENGLISH

Chris is a young man who did the project