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has been underlining

  • present perfect progressive
    of underline (3rd person singular).
    underline
    verb (used with object)
    to mark with a line or lines underneath; underscore.

Example Sentences

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The whole course of events up to now has been underlining these two judgments.

From Lessons of the War Being Comments from Week to Week to the Relief of Ladysmith by Spenser Wilkinson