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.
You've done this before, haven't you.