YOU SAID:
How do I know when I'm in love?
INTO JAPANESE
恋をしているときはどうすればわかりますか?
BACK INTO ENGLISH
How do you know when you're in love?
INTO JAPANESE
恋をしているときはどうやってわかりますか?
BACK INTO ENGLISH
How do you know when you're in love?
That didn't even make that much sense in English.