YOU SAID:
You know that I love cake
INTO JAPANESE
私がケーキを愛してください。
BACK INTO ENGLISH
I love cake.
INTO JAPANESE
私はケーキが大好き!
BACK INTO ENGLISH
I love cake!
INTO JAPANESE
私はケーキが大好き!
BACK INTO ENGLISH
I love cake!
That didn't even make that much sense in English.