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had been researching

  • past perfect progressive
    of research.
    research
    noun
    diligent and systematic inquiry or investigation into a subject in order to discover or revise facts, theories, applications, etc..

Example Sentences

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See Examples For:

Hokema learned his sister was pregnant one month before his death, and had been researching how to set up a college fund for his future niece, Sharkody told The Seattle Times in January.

From Seattle Times May 29, 2024

Meanwhile, in Rome, Italian neurologist Ugo Cerletti had been researching epilepsy by electrically inducing seizures in dogs.

From Salon Sep. 4, 2023

Walker was an avid hiker and had been researching lost water features and trails, according to Domenica Megerdichian, the South Pasadena deputy city manager.

From Los Angeles Times Jul. 27, 2023

She worried about where to store her milk supply and had been researching some storage strategies on TikTok.

From New York Times Jan. 18, 2023

Jamie glanced at the newspapers I had been researching.

From "From the Mixed-Up Files of Mrs. Basil E. Frankweiler" by E.L. Konigsburg