<span class="searchmatch">cōnstringerentur</span> third-person plural imperfect passive subjunctive of cōnstringō...
cōnstringerēris, cōnstringerēre cōnstringerētur cōnstringerēmur cōnstringerēminī <span class="searchmatch">cōnstringerentur</span> perfect cōnstrictus + present active subjunctive of sum pluperfect...