know
verb (used with object)
to perceive or understand as fact or truth; to apprehend clearly and with certainty.
have known
-
present perfectof know.present perfect
Used to describe actions that started in the past and continue into or have direct relevance to the present.
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.
Alleged victims must still prove beyond a reasonable doubt that they were too impaired to consent—and that the accused should have known it.
From The Wall Street Journal ● Oct. 7, 2026
“I would have never, never gotten onstage if I would have known that her body was still sitting there with her family surrounding her,” Sheila E. said in video statement after the festival.
From Los Angeles Times ● Oct. 7, 2026
Researchers have known for years that blood vessels in the brain deteriorate as Alzheimer's progresses, especially in people who carry APOE4.
From Science Daily ● Oct. 1, 2026
Langley responded to Lambert, saying the cop must have known she was from Texas, given the chaos unfolding in the car.
From BBC ● Sep. 22, 2026
He should have known this was a bad idea, as if they were going to get anything useful off of some weirdo they found deep in the darkest bowels of the internet.
From "Night Owls" by A.R. Vishny
