In English, there are various ways to express agreement and disagreement. Here are some common expressions for each: Expressions of Agreement: 1. I agree. 2. That's true. 3. Absolutely. 4. Exactly. 5. I couldn't agree more. 6. You're right about that. Expressions of Disagreement: 1. I disagree. 2. I'm afraid I don't agree. 3. That's not always the case. 4. I see it differently. 5. I'm not so sure about that. 6. I'm sorry, but I have to disagree. Additionally, you can also use phrases like "I suppose so" or "I guess you're right" to express a tentative agreement, and "I'm not entirely convinced" or "I'm not convinced at all" to express a hesitant disagreement. Remember that your tone of voice and body language can also convey agreement or disagreement, so pay attention to those cues as well when communicating in English.