For commenting and giving a feedback
1.I’m afraid l’d have to disagree about that.
2.Could I just say one thing?
3.I’m really glad you brought that up, Kana.
4.I couldn’t agree with you more
5.Jane, could you please spesk up. We can’t hear you at the back.
6.If I could have the floor for a moment…
7.We don’t seem to be getting anywhere with this.