YOU SAID:

I sleep with Macie, my dog.

INTO JAPANESE

私は犬、メイシーと一緒に寝ます。

BACK INTO ENGLISH

I go to bed with my dog, Macy.

INTO JAPANESE

私は犬のメイシーと寝ます。

BACK INTO ENGLISH

I go to bed with my dog's Macy.

INTO JAPANESE

私は犬のメイシーと一緒に寝ます。

BACK INTO ENGLISH

I go to bed with my dog's Macy.