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have been alleging

  • present perfect progressive
    of allege.
    allege
    verb (used with object)
    to assert without proof.

Example Sentences

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For months, campaigners and politicians in Washington have been alleging that Islamist militants are systematically targeting Christians.

From BBC Nov. 23, 2025

For months, campaigners and politicians in Washington have been alleging that Islamist militants were systematically targeting Christians in Nigeria.

From BBC Nov. 5, 2025