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have been preventing

  • present perfect progressive
    of prevent.
    prevent
    verb (used with object)
    to keep from occurring; avert; hinder.

Example Sentences

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See Examples For:

Harry’s aunt and uncle have been preventing such dispatches from reaching the young wizard-to-be, but the boarding school’s messenger owls are having none of it.

From Los Angeles Times May 14, 2026

In 2014, there were governmental regulations, imperfect though they may have been, preventing pharmaceutical companies from filling their gelcaps with sawdust, or public-school teachers from filling their lesson plans with Holocaust denialism.

From The Guardian Feb. 7, 2020

"Our research is showing those technologies have been preventing crashes, so this shows that the government agrees that this is worth promoting to the public."

From Los Angeles Times Jan. 23, 2015

First, it kept firm income higher than it would have been, preventing some firms from going out of business.

From Economist Jan. 22, 2014

Besides, I have been preventing your talk with our friends.

From The Fortunate Youth by Locke, William John