These are SPOKEN. See the "write a" section of the Style pages for language you can use in your essay (Most of those are too formal for a normal discussion. )
Personally, I think (that)
I (don't) think
In my opinion
My opinion is that
My view on this is that
I (don't) believe
|Give your level of agreement||say why and/or disagree|
|I agree that X||, however|
|I agree up to a point||, but|
|I agree with you/Miku||, since|
|I mostly agree with you/Miku||, because|
|I see your point||, partly since|
|I'm not sure I agree||, mainly as|
|, for two reasons. First|
|. One reason is that|
|. The main reason is|
You don't always immediately disagree with what was said, so later you need to refer back.
Any comments/suggestions/opinions (on that)?
Anyone have anything to add?
What do you think, NAME?
What's your opinion, NAME?
How about you?
Would you/anyone like to add anything?
Does anyone have a question for NAME?
Do you agree with (name)?
What do you think about NAME's idea?
If you're listening, use aizuchi
If you're speaking, use fillers
See make small talk
OK, so I think we're finished with this topic. Who's next?
|What makes you think that?||I saw/heard/read|
|For example?||For example,|
|For instance?||For instance|
|Can you give an example?||Well, one would be (that/when/where)|