-ous bbbb bbbs bbdd bbdo bblb bbls bdls bdos bdsd blls blob blod bloo blou blss blub blud blus bobb bobo bobs bobu bodb bodo bods bodu bold boll bolo bols bolu boob bood bool boos boso boss bosu boud boul bous bsbd bsdl bsod bsos bssd bubb bubo bubs bubu budb budd budl budo buds budu bulb buld bull buls bulu buol buss busu buus d-bo dbls dbos dbss dbus dddd ddss ddub dlbd dlos dobb dobl dobs dobu dod- dodd dodo dods dold doll dolo dols dolu doob dood dool doos doso doss doub doud doul dous dsls dsos dub- dubb dubs dubu dudd dudo duds dudu dull dulo dulu duo- duos duul lbds lbos ldls ldos llbs lldb llds llll llod lloo llud lob- lobb lobo lobs lods lold loll lolo lols loob lood lool loos loso loss loud loul lous louu lsbu lsds lsso lubs ludd ludo lull lulu luso luss obbo obls oblu obol obos obsd obss obus odbo oddd odds odoo odos odou odso odus olbo oldb olds ollo olos oold oolo oooo ooos oous oslo osoo osos ossb ossd osso ossu osul oubs ouds ould ouls oulu ousd ouu- s-os sbbs sbds sbsd sbus sdds sdls sdsl sdss sdsu slds slob slod sloo slos slsu slub slud sobo sobs sobu sodd sodo sods sodu sold soll solo sols sood sool soos soso soss soud soul sous ssdd sssb ssss sub- subb subd subl subo subs sudd sudo suds sul- suld sull sulo sulu suos sus- susd suso suss susu suus ubbo ublo ubls ubod ubos ubud udds udoo udos udsd udsl ullo ulo- ulos ulul ulus usbl usbs usdl usdo usds uslu usos ussb usss ussu usul usus uulu uuuu