1. I’m sorry to interrupt your conversation, but I’ve got something urgent to tell you.
2. Sorry to butt in.
3. I’m sorry to barge in like this, but I need your help with a problem.
4. Wait, can I put in a word here?
5. Can I say something?
6. She kept cutting in when I was making my point.
7. He chipped in when I was about to answer his question.
8. He always breaks in on our discussions.