YOU SAID:
Oh, I didn’t know you ate the cake.
INTO JAPANESE
ああ、私はあなたがケーキを食べたことを知りませんでした。
BACK INTO ENGLISH
Oh, I didn't know you ate cake.
INTO JAPANESE
ああ、私はあなたがケーキを食べたことを知りませんでした。
BACK INTO ENGLISH
Oh, I didn't know you ate cake.
That didn't even make that much sense in English.