YOU SAID:
oh um i dont really know
INTO JAPANESE
ええと、私は本当に知りません
BACK INTO ENGLISH
uh i don't really know
INTO JAPANESE
うーん、よくわからない
BACK INTO ENGLISH
hmm not sure
INTO JAPANESE
うーん、わからない
BACK INTO ENGLISH
hmm i don't know
INTO JAPANESE
うーん、わかりません
BACK INTO ENGLISH
hmm i don't know
Come on, you can do better than that.