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has been stamping

  • present perfect progressive
    of stamp (3rd person singular).
    stamp
    verb (used with object)
    to strike or beat with a forcible, downward thrust of the foot.

Example Sentences

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The machine that has been stamping parts for Tonka’s yellow dump trucks and its other models for more than a half-century is now in southeastern China.

From The Wall Street Journal ● Dec. 14, 2025

One of the more seasoned volunteers, 89-year-old Joyce Boston, has been stamping since 1997.

From Seattle Times ● Feb. 13, 2024

John D. Rockefeller’s company has been stamping out any competition that gets in the way of its profit margin.

From Washington Times ● Mar. 2, 2015