<span class="searchmatch">retrōspexisse</span> perfect active infinitive of retrōspiciō...
<span class="searchmatch">retrōspexissēs</span> second-person singular pluperfect active subjunctive of retrōspiciō...
retrōspexerīmus retrōspexerītis retrōspexerint pluperfect retrōspexissem <span class="searchmatch">retrōspexissēs</span> retrōspexisset retrōspexissēmus retrōspexissētis retrōspexissent passive...