YOU SAID:
the grandpa ate the nobody
INTO JAPANESE
おじいちゃんは誰も食べなかった
BACK INTO ENGLISH
No grandpa ate.
INTO JAPANESE
おじいちゃんは食べませんでした。
BACK INTO ENGLISH
Grandpa didn't eat.
INTO JAPANESE
おじいちゃんは食べませんでした。
BACK INTO ENGLISH
Grandpa didn't eat.
That didn't even make that much sense in English.