YOU SAID:

i bet you dont know who i am

INTO JAPANESE

あなたは私が誰なのか知らないに違いない

BACK INTO ENGLISH

you must not know who i am

INTO JAPANESE

あなたは私が誰であるかを知ってはいけません

BACK INTO ENGLISH

you don't know who i am

INTO JAPANESE

あなたは私が誰だか知らない

BACK INTO ENGLISH

you don't know who i am