YOU SAID:
How the heck was I supposed to know that
INTO JAPANESE
どのようにして私はそれを知っているはずだった
BACK INTO ENGLISH
How I should have known it
INTO JAPANESE
どのように私はそれを知っていたか
BACK INTO ENGLISH
How did I know it?
INTO JAPANESE
方法でそれを知っていましたか。
BACK INTO ENGLISH
By the way did you know that?
INTO JAPANESE
それより 瀬川君 知ってた?
BACK INTO ENGLISH
By the way, did you know?
INTO JAPANESE
それより 瀬川君 知ってた?
BACK INTO ENGLISH
By the way, did you know?
That didn't even make that much sense in English.