a-ii a-ya a-yo aaaa aaab aaai aaba aabb aabi aaby aaib aaii aaoo abaa abab abai abax abay abb- abba abbb abbi abbo abby abia abib abiy aboa abob aboo abox aboy abyy aiai aiba aibo aiia aiib aioi aixa aixi aoba axi- axia axo- axoa axxo ay-o ayao ayay ayoo ayya ba-i ba-x baaa baba babb babi babo baby baia baib baio baix baxi baya bayi bayo bbay bbbb bbox bboy bbyo biao biba bibb bibi bibo bio- bioi biox bixa bixi biya boab boai boba bobb bobi bobo boby boi- boii boob boox boxa boxy boya boyi boyo byoa byob byoi i-by iaaa iaai iaba iaia ibia ibox ibyi iiii iiio iioi iioo ioba iobi ioby ioii ioio iooi iooo ixia ixxi iyai obai obay obba obbo obby obia obix oboi obox oboy oiba oiii ooaa ooba oobi ooby ooia oooo oxa- oxi- oxia oxo- oxox oxxo oxy- xbai xbox xiao xibo xiii xixi xoxo xoyo xxii xxix xxxi xxxo xxxx xxxy yaba yabo yaoi yaxa yaxi yaya yayo yoax yoba yobi yobo yoix yoyo yyyy