YOU SAID:
He didnt like to eat food
INTO JAPANESE
彼は食べ物を食べるのが好きではなかった
BACK INTO ENGLISH
He didn't like to eat food
INTO JAPANESE
彼は食べ物を食べるのが好きではありませんでした
BACK INTO ENGLISH
He didn't like to eat food
That didn't even make that much sense in English.