This document provides expressions for agreeing or disagreeing with someone in a discussion. For full agreement, expressions include "You're right", "I agree completely", and "I couldn't agree more". For some agreement, one might say "I agree to a certain extent, but..." or "I see your point, but...". For full disagreement, one could say "I think you're wrong", "I don't think that's right", or "I disagree completely". For some disagreement, more tentative expressions are suggested like "I don't know about that" or "I'm not sure that I agree with you."