<span class="searchmatch">prōgrederēre</span> second-person singular imperfect active subjunctive of prōgredior...
prōgrediāmur prōgrediāminī prōgrediantur imperfect prōgrederer prōgrederēris, <span class="searchmatch">prōgrederēre</span> prōgrederētur prōgrederēmur prōgrederēminī prōgrederentur perfect prōgressus...