YOU SAID:
I've been wondering if you would be my valentine
INTO JAPANESE
あなたが私のバレンタインになるかどうか私は思っていました
BACK INTO ENGLISH
I thought you would be my valentine
INTO JAPANESE
私はあなたが私のバレンタインになるだろうと思った
BACK INTO ENGLISH
I thought you would be my valentine
Come on, you can do better than that.