had been whirring
- past perfect progressive of whir.
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.
A few dozen yards away from the new installation sat an older stack of Climeworks machines, 18 in total, that had been whirring on the same rooftop for more than a year.
From New York Times ● Feb. 12, 2019
There were lots of grouse in the country through which we had come and all day long coveys of them had been whirring away from our advancing outposts.
From In Africa Hunting Adventures in the Big Game Country by McCutcheon, John T.
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