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  <xs:element id="duol_ShareBasedPaymentArrangementTrancheTenMember" abstract="true" name="ShareBasedPaymentArrangementTrancheTenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="duol_StripeMember" abstract="true" name="StripeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="duol_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="duol_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="duol_LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFive" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidDueAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
