<span class="searchmatch">manutuvieran</span> third-person plural imperfect subjunctive of manutener...
(ra) manutuviera manutuvieras manutuviera manutuviéramos manutuvierais <span class="searchmatch">manutuvieran</span> imperfect (se) manutuviese manutuvieses manutuviese manutuviésemos manutuvieseis...