YOU SAID:

I greatly appreciate the work you've done for us.

INTO JAPANESE

あなたが私たちのためにしてくれた仕事にとても感謝しています。

BACK INTO ENGLISH

We are very grateful for the work you have done for us.

INTO JAPANESE

私たちはあなたが私たちのためにしてくれた仕事にとても感謝しています.

BACK INTO ENGLISH

We are very grateful for the work you have done for us.