请问如何用英语表达意见？英语口语中与表达观点和意见相关的短语有哪些？

What's your opinion on Futbol Club Barcelona?

How do you feel about the new art director?

What are your thoughts on tonight's activities?

I  think that …

I believe that …

I'm sure that …

My opinion is …

I agree with …

I feel that …

I guess…

I imagine …

I have no doubt that

I'm certain that …

I strongly believe that …

I've never really thought about this before, but …

My personal opinion is that…

To be honest

In my honest opinion, …

As far as I know

I agree with the opinion of …

I could be wrong, but …

I'd definitely say that …

I'd guess that…

I imagine that …

I'd say that …

I'm absolutely certain that …

I'm fairly confident that …

I'm no expert (on this), but …

I'm positive that …

I'm pretty sure that …

It seems to me that …

It's a difficult issue, but …

It's a complicated issue, but …

Some people may disagree with me, but …

This is just my opinion, but …

Without a doubt, …

After much thought, …

As I see it, …

Correct me if I'm wrong, but …

From my point of view, …

I am not very familiar with this topic, but …

I do believe …

I have come to the conclusion that …

I might change my mind later, but …

I suppose …

I tend to think that …

I'm pretty confident that …

I've always thought that …

If you ask me, …

I'm convinced that …

In my humble opinion  …

It seems clear to me that …

My initial reaction is …

Personally speaking …

Speaking for myself, …

The way I see it (is) …

To be (perfectly) frank, …

To the best of my knowledge, …

What I think is …

After giving this matter some thought, …

As far as I'm concerned, …

I can't help thinking that …

I tend towards the opinion that …

I think it's reasonable to say …

I think it's fair to say …

I'll tell you what I think, …

I've come the conclusion that …

If you want my opinion, …

In my limited experience, …

There is a part of me that says …

This may be controversial, but …

What I always say is …

With some reservations, …