YOU SAID:

your dad left 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出かけたのに戻ってこなかった。

BACK INTO ENGLISH

Your father went out to buy milk but didn't come back.

INTO JAPANESE

あなたのお父さんは牛乳を買いに出かけましたが、帰ってきませんでした。

BACK INTO ENGLISH

Your father went out to buy milk, but he didn't come back.

INTO JAPANESE

あなたのお父さんは牛乳を買いに出かけましたが、帰ってきませんでした。

BACK INTO ENGLISH

Your father went out to buy milk, but he didn't come back.