与 agree 的用法不同，disagree 是不及物动词，它后面既不能跟不定式，也不能跟动名词，也不能跟名词、代词、从句作宾语。若需后接宾语，需借助介词with, on, about等。如：

His conduct disagrees with his words. 他言行不一。

I’m very conscious that a lot of people disagree with me. 我很清楚许多人不同意我的观点。

Experts disagree about [on] the causes of the disease.  专家们对该病的起因意见不一。