Simple past tense and past participle of carpool.(verb)
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Use "carpooled" in a sentence
"I rode with them the first couple of years, and then when our group started getting their license we kind of carpooled together."
"Some students from the Middleburg and Aldie areas carpooled."
"I want to show my support for protecting bargaining rights, said Mentzel, who worked the second shift Friday night and arrived Saturday morning with about two dozen other Oshkosh Correctional workers who carpooled together today."