Past tense of cooperate
regular verb
The past tense of cooperate is cooperated. The past participle is also cooperated.
Forms of cooperate
| Base form (V1) | cooperate /kəʊˈɒp.ə.ɹeɪt/ |
|---|---|
| Past tense (V2) | cooperated |
| Past participle (V3) | cooperated |
| Present participle | cooperating |
| Third person singular | cooperates |
Cooperated in a sentence
- Although men and women sometimes cooperated, women usually painted or quilled very balanced, controlled geometric designs on dresses, moccasins, robes, bags, and containers.2007, David J. Wishart, Encyclopedia of the Great Plains Indians, University of Nebraska Press, published 2007, →ISBN, page 32. From the entry quill
- Concerned citizens and local, state and federal agencies cooperated to form the Muskingum Watershed Conservancy District, a publicly owned, self supporting, tax paying corporation.2000 February 15, United States Army Corps of Engineers, quoting William B. Newcomb, “Letter from Mr. William B. Newcomb to Mr. Tod D.…. From the entry river bottom
Meaning of cooperate
- verb To work or act together, especially for a common purpose or benefit.
- verb To allow for mutual unobstructed action.
- verb To function in harmony, side by side.
Questions about the past tense of cooperate
- What is the past tense of cooperate?
- The past tense of cooperate is cooperated.
- What is the past participle of cooperate?
- The past participle of cooperate is cooperated.
- Is cooperate a regular or irregular verb?
- Cooperate is a regular verb: its past tense adds -d.
Source and license
Adapted from Wiktionary: cooperate (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.
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Cite this page: “Past tense of cooperate.” Word.ws, https://word.ws/past-tense/cooperate. Based on Wiktionary, CC BY-SA 4.0.