Simple past tense and past participle of earn.(verb)
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Use "earnt" in a sentence
"Does anyone want to guess what CENTREX, (Norman Bettison), and the consultants have earnt from the Positive Action Leadership Programme for minority ethnic staff?"
"Not that he "earnt" it during his time at Watford."
"I don't think he 'earnt' salvation; I think he was open to God's life working through him."