Nie zgadzać się in English:

Let's agree to disagree.

If you disagree with him, he is liable to get angry.

Just for the record, I totally disagree with this decision.

Some people think that it is difficult for a native speaker of English to learn Chinese, but I disagree.

I agree on an emotional level, but on the pragmatic level I disagree.

They consider it impolite to disagree with someone they don't know very well.

I disagree!

Who shall decide when doctors disagree?

To what extent do you agree or disagree with this statement?

I will listen to you, especially when we disagree.

I beg to differ, as I disagree with your analysis of the situation.

historians often disagree

She can't stand when people disagree with her.

Mark thinks his jokes are funny, but Fiona disagrees.