Submitted by György Chityil ... on Mon, 12/11/2017 - 21:47 Lemma: concernNgram Count: 1Starts with letter: YesIndefinite Article: aSource: COCA Top 5000Google Ngram Count: 23180027Sense count: 3Contained in other ngrams: 6Hierarchy: AdjectivePrepositionPresent ParticipleForms: concernedconcernsForms Count: 2