Simple past tense and past participle of asseverate.(verb)
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Use "asseverated" in a sentence
"I once noticed Mary McCarthy ending a line of dialogue with ''she asseverated,'' and had to stop reading to get the dictionary."
"Broder asseverated, as if it were true, that special prosecutor Patrick Fitzgerald had exonerated Rove because "In fact, the prosecutor concluded that there was no crime; hence, no indictment.""
"I once noticed Mary McCarthy ending a line of dialogue with “she asseverated,” and had to stop reading to get the dictionary."