YOU SAID:

my sister came from class and spilled her water

INTO JAPANESE

妹が授業から来て水をこぼしてしまいました

BACK INTO ENGLISH

My sister came from class and spilled water.

INTO JAPANESE

妹が授業から来て水をこぼしてしまいました。

BACK INTO ENGLISH

My sister came from class and spilled some water.

INTO JAPANESE

妹が授業から来て水をこぼしてしまいました。

BACK INTO ENGLISH

My sister came from class and spilled some water.