YOU SAID:
The robot I built yesterday has become evil!
INTO JAPANESE
昨日作ったロボットが悪者になってしまった!
BACK INTO ENGLISH
The robot I made yesterday has turned into a bad guy!
INTO JAPANESE
昨日作ったロボットが悪者になってしまった!
BACK INTO ENGLISH
The robot I made yesterday has turned into a bad guy!
That didn't even make that much sense in English.