YOU SAID:

You're not doing a very good job at this.

INTO JAPANESE

あなたはこれであまり良い仕事をしていません。

BACK INTO ENGLISH

You are not doing a very good job with this.

INTO JAPANESE

あなたはこれであまり良い仕事をしていません。

BACK INTO ENGLISH

You are not doing a very good job with this.