Simple past tense and past participle of behave.(verb)
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Use "behaved" in a sentence
""Richard Colvin behaved as a straight-up-and-down person, completely honest and doing his job to the best of his abilities," the former official said."
"But then I also think that perhaps my idea of well-behaved is different than some of the other posters."
"At times he half-rose from his chair, and fell vacuously into it again; or he chuckled in the face of weighty, severely-worded instructions; tapped his chest, stretched his arms, yawned, and in short behaved so singularly that Richard observed it, and said: "On my soul, I don't think you know a word I'm saying.""