<span class="searchmatch">cirkusen</span> definite singular of cirkus...
<span class="searchmatch">cirkusens</span> definite genitive singular of cirkus...
cirkus nominative genitive singular indefinite cirkus cirkus definite <span class="searchmatch">cirkusen</span> <span class="searchmatch">cirkusens</span> plural indefinite cirkusar cirkusars definite cirkusarna cirkusarnas...