YOU SAID:
your dad went to get milk and he didn't come back
INTO JAPANESE
あなたのお父さんは牛乳を買いに行ったのに帰ってこなかった
BACK INTO ENGLISH
Your father went to buy milk and didn't come back.
INTO JAPANESE
あなたのお父さんは牛乳を買いに行って帰ってこなかった。
BACK INTO ENGLISH
Your father went to buy milk and never came back.
INTO JAPANESE
あなたのお父さんは牛乳を買いに行き、二度と戻ってきませんでした。
BACK INTO ENGLISH
Your father went to buy milk and never came back.
That didn't even make that much sense in English.
