It is customary in English to at least aim to not directly confront people, and even when you disagree it is considered polite to try and find some common ground first.
- Standard Phrases
- I think you are right!
- I agree with you.
- More Colourful Phrases
- Sounds good to me.
- Looks good to us.
- Standard Phrases
- We couldn't agree with her more.
- I share your view entirely.
- I think you are absolutely right!
- I completely agree with you.
- More Colourful Phrases
- He is absolutely spot on!
- You are 100% on the money.
- Standard Phrases
- That's true up to a point, but I think you'll find that...
- I agree with you up to a point, but...
- That's mostly correct, however...
- We agree with you in principle, but looking at...
- She is right about that, though not about...
- More Colourful Phrases
- You had me right up until you said...
- His argument was going so well until you realize that...
- Standard Phrases
- I am afraid I can't agree with you.
- We are not sure you are right.
- I disagree with some of your points.
- She doesn't agree that...
- I can't agree with you on that point, sorry.
- We don't share your opinion on that.
- More Colourful Phrases
- That's not going to carry here.
- You're off mark a little there I am afraid.
- Standard Phrases
- That is completely wrong, sorry.
- You have it completely incorrect there.
- I completely disagree with all of your points.
- She doesn't agree at all that...
- I can't possibly agree with you on that, sorry.
- I couldn't agree with you less.
- More Colourful Phrases
- You must be joking to think that! (quite rude)
- You're way off the mark!
- That's just plain wrong.
- There's no way I am buying that.