YOU SAID:

I can't believe you spilled so much coffee today.

INTO JAPANESE

今日あなたがそんなにコーヒーをこぼしたとは思えません。

BACK INTO ENGLISH

I do not think you spilled so much coffee today.

INTO JAPANESE

今日あなたがそんなにコーヒーをこぼしたとは思わない。

BACK INTO ENGLISH

I do not believe you spilled so much coffee today.

INTO JAPANESE

今日あなたがそんなにコーヒーをこぼしたとは思わない。

BACK INTO ENGLISH

I do not believe you spilled so much coffee today.