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have been phasing

  • present perfect progressive
    of phase.
    phase
    noun
    any of the major appearances or aspects in which a thing of varying modes or conditions manifests itself to the eye or mind.

Example Sentences

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See Examples For:

Some schools have been phasing their changes in over the last few years.

From BBC ● Aug. 10, 2026

Mitchell, who worked on the California report with Bradman, said that because manufacturers have been phasing out red dye No. 3 for more than a decade, it’s not a significant concern for her.

From Los Angeles Times ● Jan. 15, 2025