have altered
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present perfectof alter.present perfect
Used to describe actions that started in the past and continue into or have direct relevance to the present.
alterverb (used with object)to make different in some particular, as size, style, course, or the like; modify.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Kuzichkin and Mr. McCredie followed similar paths on opposite sides of the ideological divide, only to forge a partnership that, the author argues, could have altered the course of history.
From The Wall Street Journal ● Sep. 14, 2026
And then there’s just how enormously California’s natural places have altered and disappeared in the century since the last grizzly was killed.
From Los Angeles Times ● Aug. 13, 2026
"Cracks within the six-member Gulf Cooperation Council and open Iran-UAE confrontation have altered the geopolitics," he added.
From Barron's ● May 15, 2026
The case has drawn attention across Florida and internationally, particularly within Bangladeshi academic communities, as questions mount about the timeline of the students’ disappearance and whether earlier intervention could have altered the outcome.
From Salon ● Apr. 25, 2026
This account Bilbo set down in his memoirs, and he seems never to have altered it himself, not even after the Council of Elrond.
From "The Fellowship of the Ring" by J.R.R. Tolkien
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