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had been assuming

  • past perfect progressive
    of assume.
    assume
    verb (used with object)
    to take for granted or without proof.

Example Sentences

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The appeal of GPUs has also strengthened as the chips prove that their useful lives are significantly longer than the five-year depreciation schedule that many had been assuming.

From MarketWatch ● Aug. 12, 2026

"The key thing is that we corrected a deep error in the physical model people had been assuming for decades for these very cold and old objects," said Umurhan, Birch's co-author on the paper.

From Science Daily ● Mar. 27, 2024

Michelle and other pupils in the sixth-form room had been assuming it was another drill - but they then caught a glimpse of police officers through a window.

From BBC ● Mar. 13, 2024

“She had been assuming that every child who didn’t have to be called illegitimate must be blessed with a father and mother and perfect health.”

From Los Angeles Times ● Feb. 23, 2022

The most important question temporarily settled by the treaty was the fishery dispute which had been assuming a troublesome aspect for some years previously.

From Lord Elgin by Sir John George Bourinot