YOU SAID:
In the back of my mind I think I always knew
INTO JAPANESE
心の奥底ではいつも知っていたと思う
BACK INTO ENGLISH
I think deep down I always knew
INTO JAPANESE
私はいつも知っていたと思います
BACK INTO ENGLISH
i think i always knew
INTO JAPANESE
私はいつも知っていたと思う
BACK INTO ENGLISH
i think i always knew
That didn't even make that much sense in English.