I think...
A2Expressing a belief or opinion.
In my opinion...
A2Stating one's personal viewpoint.
I believe...
A2Expressing a strong belief.
It seems to me...
A2Suggesting an observation.
I feel that...
A2Expressing a feeling or intuition.
To my mind...
A2In my opinion.
I agree.
A2Expressing agreement.
I disagree.
A2Expressing disagreement.
That's right.
A2Expressing agreement.
That's wrong.
A2Expressing disagreement.
I'm not sure.
A2Expressing uncertainty.
I'm not certain.
A2Expressing uncertainty.
It's good.
A2Expressing approval.
It's bad.
A2Expressing disapproval.
It's interesting.
A2Expressing interest.
It's important.
A2Highlighting importance.
It's a shame.
A2Expressing regret.
That's a pity.
A2Expressing sympathy or regret.
I see.
A2Showing understanding.
Really?
A2Expressing surprise or disbelief.
I think...
B1Expressing a personal opinion.
In my opinion...
B1Expressing a personal opinion.
I believe...
B1Expressing a belief.
It seems to me that...
B1Expressing a tentative opinion.