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has been brightening

  • present perfect progressive
    of brighten (3rd person singular).
    brighten
    verb (used with or without object)
    to become or make bright or brighter.

Example Sentences

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See Examples For:

Lately, with President Biden’s prediction that every adult can be vaccinated by the end of May, the outlook for theaters has been brightening for the first time in a long time.

From Seattle Times Mar. 5, 2021

Around a billion years from now the sun, which has been brightening slowly ever since its formation, will be shining fiercely enough to make Earth uninhabitable.

From Economist Sep. 28, 2016

Among the company-owned stores, at least, the financial picture has been brightening.

From New York Times Sep. 29, 2011

What a joy this has been, brightening for three years my hopes and expectations.

From A Life of St. John for the Young by George Ludington Weed