If I’ve understand you correctly, you are saying that...? Correct me if I’m wrong, but...? Am I correct in assuming that...? When you say..., do you mean that...? Are you saying that...? Basically, what you’re saying is...
I’m afraid I’m not quite clear what you mean by that. I’m sorry, I didn’t quite follow what you said about... I’m afraid I don’t understand what you mean. I’m afraid I didn’t quite get your last point. Could you go over it again please?
CORRECTING MISUNDERSTANDING I’m afraid there seems to have been a slight misunderstanding
Sorry, I’m probably not making myself clear. Let me put it another way... Perhaps I should make that clearer by saying... Allow me to rephrase that. To be more specific,... Put simply,...