YOU SAID:
I wish I knew what love was
INTO JAPANESE
私は愛が何であるか知っていればいいと思う
BACK INTO ENGLISH
I think what love is I know
INTO JAPANESE
愛が何かは私は知っていると思う
BACK INTO ENGLISH
I think I know what love is
INTO JAPANESE
私はどのような愛は知っていると思う
BACK INTO ENGLISH
I think I know what love is.
INTO JAPANESE
私はどのような愛は知っていると思います。
BACK INTO ENGLISH
I think I know what love is.
That didn't even make that much sense in English.