YOU SAID:
気づいなかった
INTO JAPANESE
気づいなかった
BACK INTO ENGLISH
I didn't notice
INTO JAPANESE
気付かなかった
BACK INTO ENGLISH
did not notice
INTO JAPANESE
気づかなかった
BACK INTO ENGLISH
I did not notice
INTO JAPANESE
私は気づかなかった
BACK INTO ENGLISH
I did not notice
Yes! You've got it man! You've got it