YOU SAID:

The third shoe was three sizes too big for my two feet.

INTO JAPANESE

3 番目の靴は、3 つのサイズが大きすぎて私の 2 つの足だった。

BACK INTO ENGLISH

My two feet was the third shoe, three sizes too large.

INTO JAPANESE

私の両足は 3 番目の靴、3 つのサイズが大きすぎます。

BACK INTO ENGLISH

My feet are too third shoes, size 3.

INTO JAPANESE

私の足は、あまりにも 3 番目靴、サイズ 3 です。

BACK INTO ENGLISH

My feet are too third shoes, size 3.