YOU SAID:

one is chewing up my shoe

INTO JAPANESE

1つは私の靴を噛んでいる

BACK INTO ENGLISH

One is biting my shoes

INTO JAPANESE

俺の靴を噛んでいます。

BACK INTO ENGLISH

I'm biting my shoes.

INTO JAPANESE

私は私の靴をかむよ。

BACK INTO ENGLISH

I chew on my shoes.

INTO JAPANESE

私は私の靴にかみます。

BACK INTO ENGLISH

I chew on my shoes.