I didn't feel able to disagree with him.

我觉得无法不同意他的意见。

《牛津词典》

You can disagree with him.

你可以不同意他。

youdao

He tends to get angry when people disagree with him.

当人们不同意他的意见时，他很容易生气。

youdao

President Truman warned him several times not to disagree with government policy.

VOA: special.2009.05.24

Locke says that legitimate government is government founded on consent and who, nowadays, would disagree with him?

洛克说合法政府是建立在同意的基础上,而现如今又有谁会不同意他的观点呢？

耶鲁公开课 - 公正课程节选

But he says I cannot disagree with him unless I scientifically prove him wrong.

FORBES: Magazine Article

He will listen more, and seek the advice of people who may disagree with him.

BBC: Democratic Convention diary

Forty-five percent of registered Republicans say they disagree with him on issues that matter to them.

CNN: Poll: Obama makes big gains among black voters