YOU SAID:

i cannot begin to fathom how much i hate you

INTO JAPANESE

私はあなたがどれほど嫌いなのか分からない

BACK INTO ENGLISH

I do not know how much I hate you

INTO JAPANESE

私はあなたがどれほど嫌いなのかわかりません

BACK INTO ENGLISH

I do not know how much I hate you