YOU SAID:

never was i so disappointed

INTO JAPANESE

こんなにがっかりしたことはなかった

BACK INTO ENGLISH

I've never been so disappointed

INTO JAPANESE

こんなにがっかりしたことはありません

BACK INTO ENGLISH

I have never been so disappointed

INTO JAPANESE

こんなにがっかりしたことはありません

BACK INTO ENGLISH

I have never been so disappointed