YOU SAID:
Hello. Your step brother ate some cheese last night.
INTO JAPANESE
こんにちは。あなたの継兄は昨夜チーズを食べました。
BACK INTO ENGLISH
Hello. Your stepbrother ate cheese last night.
INTO JAPANESE
こんにちは。あなたの義理の兄弟は昨夜チーズを食べました。
BACK INTO ENGLISH
Hello. Your brother-in-law ate cheese last night.
INTO JAPANESE
こんにちは。あなたの義理の兄弟は昨夜チーズを食べました。
BACK INTO ENGLISH
Hello. Your brother-in-law ate cheese last night.
That didn't even make that much sense in English.