YOU SAID:
the man grabbed a cup and spilled the cup on accident
INTO JAPANESE
その男はカップをつかみ、誤ってカップをこぼしてしまいました
BACK INTO ENGLISH
The man grabbed the cup and accidentally spilled it.
INTO JAPANESE
男はカップを掴んで誤ってこぼしてしまいました。
BACK INTO ENGLISH
The man grabbed the cup and accidentally spilled it.
That didn't even make that much sense in English.