YOU SAID:

there once was a boy and this boy was an idiot

INTO JAPANESE

かつて少年があった、この児は白痴

BACK INTO ENGLISH

Once had a boy, this boy is a idiot

INTO JAPANESE

かつての少年は、この少年は、白痴

BACK INTO ENGLISH

Former boy, this boy is a idiot

INTO JAPANESE

元少年は、この少年は、白痴です。

BACK INTO ENGLISH

Former boy, this boy is, idiot.

INTO JAPANESE

元少年は、この少年が、白痴です。

BACK INTO ENGLISH

Former boy, this boy is, idiot.