how do I ungroup people in messenger

1. Open the Facebook Messenger group chat where you're an admin and you want to remove someone from the chat.

2. Tap the names of the group chat participants that appears at the top of the conversation. A window opens with options associated with this specific group chat.

3. Scroll down the screen and then tap "Members." A list of all members in this specific group chat are displayed. You can see who has admin privileges in the group chat by tapping "Admin."

4. Tap the Facebook Messenger group chat member you want to remove from the chat. An information screen opens up for that specific user.

5. Tap "Remove from Group." You'll be returned to the Members page for this Facebook Messenger group chat, where you'll see that specific member has been removed, and will not receive messages posted to this group chat going forward.

Messenger is not an Apple app. You would need to contact Facebook for support on their app.