warn
verb (used with object)
to give notice, advice, or intimation to (a person, group, etc.) of danger, impending evil, possible harm, or anything else unfavorable.
have been warning
-
present perfect progressiveof warn.present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
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.
The demand has been so high that authorities have been warning fans about how to avoid ticket scams.
From Los Angeles Times ● Jun. 23, 2026
Experts have been warning that dismantling global public health initiatives will end up hurting Americans, too, in the end.
From Slate ● Jun. 9, 2026
Airports in some U.S. cities have been warning travelers to prepare to spend hours waiting for security checkpoints.
From The Wall Street Journal ● Mar. 14, 2026
Privacy geeks have been warning of this moment for decades, not just in the realms of science fiction, but even on the pages of Salon, back when a digital magazine was a novel idea.
From Salon ● Feb. 20, 2026
Ever since I arrived in Minnesota people have been warning me about the extreme cold that’s on the way.
From "Orphan Train" by Christina Baker Kline
