Simple past tense and past participle of inquire.(verb)
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Use "inquired" in a sentence
"When they arrived back at the farm house the country cousin inquired how many birds were killed."
"Update from the transcript: The other techniques Senator Durbin inquired about were painful stress positions, threatening detainees with dogs, forced nudity, mock execution."
"Lewin inquired as to the child's identity, which the angel revealed as simply the one whom the Jews killed in Norwich in mockery of Jesus 'Passion."