YOU SAID:

Hahaha I bet your dad went to Pakistan legally

INTO JAPANESE

あなたのお父さんが合法的にパキスタンに行ったに違いない

BACK INTO ENGLISH

Your father must have legally been to Pakistan

INTO JAPANESE

あなたのお父さんは合法的にパキスタンに行ったに違いない

BACK INTO ENGLISH

Your father must have legally been to Pakistan