1.询问是否有问题

错误的问法：
Do you have a problem?/ Is there a problem?
你有什么问题吗？（挑衅地）
I have a problem.
我有毛病。

正确的问法：
Do you have any questions? / Is there any confusion? / Can I make things more clear?
你有什么问题吗？

2.问意见
What's your opinion on...? / How do you feel about...?
你觉得...怎么样？

3.表达观点
I feel/ think/ believe that...
In my opinion,...
我认为/依我来看，...

4.提出反对意见

委婉
I understand your perspective, but I don't agree because ...
我明白你的见解，但是我不是很认同，因为...
I agree with ... but I don't feel that ...
我同意... 但是我不觉得...

直接
Sorry, I can't seem to find common ground with you.
不好意思我无法认同。
Sorry I disagree with you. (and then state your reason)
不好意思我不认同你。（说明你的原因）

5.询问详情
Can you tell me more about ...?
请问能告诉我更多关于...的细节吗？