YOU SAID:
an englishmans home is his castle
INTO JAPANESE
イングリッシュマンの家は彼の城です
BACK INTO ENGLISH
Englishman's house is his castle
INTO JAPANESE
イギリス人の家は彼の城です
BACK INTO ENGLISH
The English house is his castle
INTO JAPANESE
イギリスの家は彼の城です
BACK INTO ENGLISH
British house is his castle
INTO JAPANESE
イギリスの家は彼の城です
BACK INTO ENGLISH
British house is his castle
That didn't even make that much sense in English.