<span class="searchmatch">nitrifièrent</span> third-person plural past historic of nitrifier...
nitrifia /ni.tʁi.fja/ nitrifiâmes /ni.tʁi.fjam/ nitrifiâtes /ni.tʁi.fjat/ <span class="searchmatch">nitrifièrent</span> /ni.tʁi.fjɛʁ/ future nitrifierai /ni.tʁi.fi.ʁe/ nitrifieras /ni.tʁi.fi...