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.
has been warning
-
present perfect progressiveof warn (3rd person singular).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.
Since the 1980s, psychologist and MIT professor Sherry Turkle has been warning that modern technology is scrambling our ability to live in the real world and feel empathy for fellow human beings.
From Slate ● Sep. 29, 2026
Anthropic has been warning investors about investment scams since at least February, when it first published a web page listing common techniques used by scammers.
From MarketWatch ● May 13, 2026
Goldman has been warning that the latest leg higher for stocks is “a bit much,” and that a big wave of buying could be about to slow.
From The Wall Street Journal ● Apr. 21, 2026
Rob Roy, president of the Ventura County Agricultural Association, said he has been warning growers since November that this time would come and providing training on their legal rights.
From Los Angeles Times ● Jun. 12, 2025
“Granny has been warning me about the dangers of the county home my whole entire life.”
From "Louisiana's Way Home" by Kate DiCamillo
