cooperate
verb (used without object)
to work or act together or jointly for a common purpose or benefit.
had been cooperating
-
past perfect progressiveof cooperate.past perfect progressive
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
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.
He also said he had been cooperating with the U.S.
From Los Angeles Times ● Nov. 17, 2025
In an emailed statement, Credit Suisse said it did not tolerate tax evasion and had been cooperating with U.S. authorities.
From Reuters ● Mar. 29, 2023
He had been "cooperating" before but had not testified under oath.
From Salon ● Jul. 8, 2022
Mr. Benjamin said last week that he had been cooperating with investigators, after news outlets, including The New York Times, reported details of the investigation.
From New York Times ● Apr. 12, 2022
Riddell, who had been cooperating with federal authorities in hopes of getting a lesser sentence, pleaded guilty to fraud and money laundering conspiracy charges in April 2019.
From Seattle Times ● Apr. 7, 2022
