<span class="searchmatch">progresen</span> inflection of progresar: third-person plural present subjunctive third-person plural imperative...
affirmative progresatú progresávos progrese progresemos progresad <span class="searchmatch">progresen</span> negative no progreses no progrese no progresemos no progreséis no <span class="searchmatch">progresen</span>...