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has been riffing

  • present perfect progressive
    of riff (3rd person singular).
    riff
    noun
    a melodic phrase, often constantly repeated, forming an accompaniment or part of an accompaniment for a soloist.

Example Sentences

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Epos has been riffing on a similar design for its headsets for a while now, but the H3Pro Hybrid delivers its most refined, easy-on-the-eyes take yet.

From The Verge Nov. 16, 2021

Having thrashed already-relegated Reading, Arsène Wenger has been riffing on Arsenal's recent troubles.

From The Guardian Dec. 18, 2012

Perhaps sensitive to this contrast, Mario Cuomo began our conversation by discoursing on the senselessness of political labels, a theme on which he has been riffing for 25 years.

From New York Times Apr. 7, 2011