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has been concentrating

  • present perfect progressive of concentrate (3rd person singular).

Example Sentences

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“He is trying to get a little more rest and has been concentrating on medical appointments,” his sister said in the post.

From Los Angeles Times Aug. 18, 2022

St. Vincent De Paul, a ministry of the St. George and Mary Magdalene Catholic Churches, has been concentrating its efforts on making sure people have a place to stay, including extended stays in local motels.

From Washington Times Apr. 21, 2021

Another group, Inspire U.S., has been concentrating on registering high school students in their classrooms.

From New York Times May 20, 2018

Haemmerle has been concentrating on skis for most of his adult life and Vonn is by no means the first champion he has worked with.

From Reuters Feb. 20, 2018

And it's the first time—here's the crux, as I see it—that any of us has been concentrating on any destination at the moment of firing the charge.

From The Galaxy Primes by Smith, E. E. (Edward Elmer)