Simple past tense and past participle of disagree.
Disagreed Sentence Examples
Why did he do that every time he disagreed with her?
In a book issued in 1921 in justification of his own actions, Mr. Lansing explained that he disagreed with Mr. Wilson on various points, including that of incorporation of the League of Nations in the Peace Treaty; but he was overtly responsible with him for signing the Treaty, and on his return to Washington he urged that the Treaty as formulated be adopted by the Senate.
Still, it wasn't the first time they had vehemently disagreed on something.