have been weakening
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present perfect progressiveof weaken.present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
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.
At Mondelez International, Chief Financial Officer Luca Zaramella recently told analysts that U.S. sales of some products particularly popular with lower-income households have been weakening, such as Chips Ahoy cookies.
From Seattle Times ● May 9, 2024
Some research suggests it may have been weakening for at least 150 years.
From Scientific American ● Apr. 27, 2022
And ours again are better than a lot of other countries but obviously have been weakening quite a bit.
From Slate ● Oct. 30, 2020
Yet Graham and other PPE veterans worry that over the last decade, unnoticed by the outside world, some of the Oxford degree’s “values and principles” have been weakening.
From The Guardian ● Feb. 23, 2017
Flesh wounds, most likely, but," he added, sinking his voice still lower, "judging from what we've seen of the blood he's lost, he must have been weakening by the time he got here.
From Ravensdene Court by J. S. (Joseph Smith) Fletcher