have been modifying
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present perfect progressiveof modify.present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
modifyverb (used with object)to change somewhat the form or qualities of; alter partially; amend.
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.
That is, until Shelby takes him for a spin in the car that he and Miles have been modifying.
From Slate ● Nov. 15, 2019
Great writers have been modifying absolute adjectives for centuries, including the framers of the American Constitution, who sought "a more perfect union".
From The Guardian ● Aug. 15, 2014
Photo: Rick SchneiderDownriggers have been in the arsenal of king mackerel fishermen for many years, but those in the top tier of the sport have been modifying their deep-water tactics recently.
From Time Magazine Archive
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They are for the most part silent forces that have been modifying the folk-ways in Europe and America.
From Society Its Origin and Development by Henry Kalloch Rowe