might/should have known

idiom

—used to say that one is not surprised to learn of something

I should have known it would be too expensive.

"She says she's going to be late." "I might have known."

Examples of might/should have known in a Sentence

Recent Examples on the Web

The same teens were charged with beating up a young man at Valley Fair less than an hour earlier and stealing his shoe, and the lawsuit claims Santana Row should have known about it and been ready to protect their customers. —Julia Prodis Sulek, Mercury News, 8 Aug. 2025

While police have not established a motive for the shooting, Weathers said the suspect might have known people at the church. —Adam Sabes, FOXNews.com, 14 July 2025

The maps illustrate that authorities should have known many Hill Country camps were in risky locations if floodwaters began to rise. —Mirna Alsharif, NBC news, 5 July 2025

While red flags were posted on nearby sections of the beach, her lawsuit alleges the city should have known the entire area was unfit for swimming. —Tresa Baldas, Freep.com, 21 July 2025