happen
verb (used without object)
to take place; come to pass; occur.
will have happened
-
future perfectof happen.future perfect
Used to describe an action that will be fully completed or achieved by a specific point in the future.
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.
Twenty-five years into any new century, quite a bit will have happened.
From The Wall Street Journal ● Dec. 30, 2025
This little anticipatory poem has its way with time: it describes what Merwin imagines will have happened on March 15, 2019, but it is dedicated to, and reserved for, every March 15th thereafter.
From The New Yorker ● Mar. 17, 2019
Downing Street has said that the vote will have happened by Monday 21 January, in just 38 days' time.
From BBC ● Dec. 14, 2018
At that point one of two things will have happened: If what you fear is indeed real, then it will have become obvious enough that you are no longer alone in your observation.
From Slate ● Aug. 15, 2018
And that nothing will have happened to us and our helpers long before that time?
From "The Diary of a Young Girl" by Anne Frank
