YOU SAID:

I go to the post office, commit a felony.

INTO JAPANESE

私は郵便局に行き、重罪を犯す。

BACK INTO ENGLISH

I went to the post office, commit a felony.

INTO JAPANESE

郵便局に行った、重罪を犯します。

BACK INTO ENGLISH

I went to the post office, a felony commits.

INTO JAPANESE

郵便局に行った、重罪をコミットします。

BACK INTO ENGLISH

I went to the post office, a felony commits.