YOU SAID:
How did you know I'm learning Japanese?
INTO JAPANESE
どうして私が日本語を習っていると知ったの?
BACK INTO ENGLISH
How did you know I was learning Japanese?
INTO JAPANESE
どうして私が日本語を習っていると知ったの?
BACK INTO ENGLISH
How did you know I was learning Japanese?
That didn't even make that much sense in English.