Oh yeah when I was teaching in Baden a couple of weeks ago, the kids kept mixing up he, him and his all the time in English, so we stopped the activity to have a refresher of pronouns. I asked them to give me the German words for each one as a checkup that they had got it clear now. They came up with this:
er, ehm, ehm, seins
Good work kids.
(For non-German speakers, it’s supposed to be er, ihn, ihm, sein)