Simple past tense and past participle of tweet.(verb)
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Use "tweeted" in a sentence
"A day after she was caught tweeting about Las Vegas antics when she was supposed to be speaking at Juniata College, McCain tweeted (seemingly chagrined?) "Mi Vida Loca.""
"Finally, on Aug. 15, he tweeted from the finish line of a race: Just ran my first 10K in almost 25 years."
"ABC News's Rick Klein tweeted that he was "REALLY not sure this is funny.""