was cooperating
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past progressiveof cooperate.past progressive
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
cooperateverb (used without object)to work or act together or jointly for a common purpose or benefit.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The airline said it was cooperating with investigators and said the “safety and wellbeing of our passengers, crew and operations remain our highest priority.”
From The Wall Street Journal ● Oct. 7, 2026
Amazon said it was “heartbroken by the loss of life” and was cooperating with authorities.
From Salon ● Sep. 7, 2026
In a statement sent to AFP on Tuesday prior to the decision, Discord said it was "cooperating with authorities in the investigation into this serious case."
From Barron's ● Aug. 12, 2026
It said that Minnesota investigators had “no ongoing concerns with Chipotle,” and that the company was cooperating with health authorities.
From MarketWatch ● Aug. 4, 2026
We had grown apart: he had opted for a traditional leadership role and was cooperating with the system.
From "Long Walk to Freedom" by Nelson Mandela
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