expressions for debates

Stating an opinion

In my opinion...
I think that...
I feel that...
I believe that...
It seems to me that...
If you ask me...
I'd say that...
The point is...
As I see it...

Asking someone to repeat or explain:

I don't understand what you mean
Would you explain that, please?
I'm sorry, but I didn't understand your point.
Could you give an example?
What do you mean by...?

Agreeing with someone:

You're right
I think so, too
I agree with you
You could be right
I couldn't agree more
That's a good point
I see what you mean
That's just what I was thinking
I agree entirely
You know, that's exactly what I think

Disagreeing with someone:

Yes, but...
I'm sorry but I have to disagree there
That's not the point
No, I think you're wrong
I can't agree with you there
Up to a point, but...
Yes, that's quite true, but...
I'm not sure I quite agree
Well, you have a point there, but...
Perhaps, but don't you think that...
I see what you mean, but...
I totally disagree with you there

Persuading someone

You must admit that...
Do you really believe that...?
Don't you think that...?
Don't you agree that...?
Wouldn't you say that the reverse is also true?