-ing bbbb bbgm bbin bbmg bbng bbrg bgon bgun bibb bibi bibo bigb bigg bign bigo bigu biin bimo bin- bing bini binn bino binu bio- biog bioi bion biou birb birg biri birn biro birr biru bmir bmmi bnib bnim bnin bnor bnrr bobb bobi bobo bobu bogg bogi bogo boi- boii boim boin boiu bomb bomi bomu bong boni bonn bono bonu boob boog boom boon boor bor- borg bori borm born boro borr boru boum boun bour brig brim brin brio brno brob brog brom bron broo bror brou brrm brrr brug brum brun bubb bubi bubo bubu bugg bugi bugo buin buir buiu bum- bumb bunb bung buni bunn buno bunu buon bur- burb burg buri burm burn buro burr buru gbbo gbon gggg ggrn gibb gigg gigi gign gigo gimo ging gini ginn gino ginu giog gioi gion girg giri girn giro girr giru giur gmmr gnib gnin gnom gnoo gnrr gobi gobo gogi gogo goin gomb gomi gomn gomo gomu gon- gong goni gonn gono gonu goog gooi goom goon goor gorb gorg gori gorm gorn goro gorr gou- goug goum goun gour grbr grib grig grim grin grni grob grog groi grom gron groo gror grou grrr grub grug grui grum grun grur gubb gubi gubu gugb gugg gugi gugu guib guin gumb gumi gumm gumo gung gunn gurb gurg guri gurn guro gurr guru i-go i-no ibbm ibim ibon ibri ibro igbo igni igno ignu igon igoo igor igri iiii iiio iinm iino iioi iioo iium imbi imin imir immi immo imno imon imou imri imro imrr imun inbo ingo inig inni inno innr innu ino- inoi inon inor inou inri inro inui inun iobi ioii ioio iomo ioni ionn iono iooi iooo iorg iori ioug ioun irbm irgm iri- irig irin irio irmo irob iron irri irun iuiu iuno mbim mbio mbou mgrm migg migi migo migu miii miin miio mim- mimi mimo ming mini minn mino minu mio- mion mirg miri miro mirr miru miui mmgn mmii mmmm mmor mmun mnbb mngr mnin mobb mobi mobo mogg mogi mogo mogu moii moin moio moir momi momo momu mon- mong moni monn mono monu moob moog moon moor morb morg mori morn moro moru moun mour mrbb mrbm mrgn mrng mron mubi mubo mugg mugi mugo mugu muin muir mumm mumo mumu mung muni munn muno munu muon murg muri murn muro murr muru n-ii nbbo ngio ngmn ngom ngon ngor ngou ngri ngur nguu nibi nibm nibo nigg nigo niir niiu nimb nimi nimo nimr nimu ning nini nino niog nion nioo niou niro niru niur nmon nmri nngn nnnn nobi nobm nobo nobu nogg nogo noib noin noio noir nom- nomi nomo nomu non- nong noni nonn nono nonu noo- noob noon nooo noor nor- norb norg nori norm norn noro norr noun nour nron nubi nuim nuin numb numi numm numu nung nunn nuno nuon nuri nurn nurr nuru obbo obin oboi obon obor obri obro ogb oggi ogin ogni ogog ogoi ogon ogou ogri ogro ogui ogum ogun oigo oiii oimb oion oium ombo ombu omim omin omio omn- omni omo- omoi omon omoo omor omri omro omuo ongi ongo ongu onir onni onno onon onor onur oobi oooo orbb orbi orbo orbu orgn orgo ori- orig orin orio ormn ormo orni orno oro- orom oron oror orri orro orub orum ouii ouin ouir oumi oun- oung our- ourn ouro ouu- rbbb rbbr rgbi rib- ribo ribu rigg rigi rigo rigu riin rimi rimm rimo rimu ring rinn rino riom rion riou riri rmon rmrg rnbr rnin rob- robb robi robo robu rogg rogi rogo roig roin roio roir roiu romb romi romm romo rong roni rono roob roog rooi room roon roor rori roro roru roub roum roun rrrr rrum rrun rubb rubi rubu rugg rugi ruin rumb rumi rumm rumo rung runi runn runo ruri ruro ruru ruun ubbi ubbo ubii ubir ubon uggo ugni ugri ugro ugur uguu uirr umb- umbi umbo umgo ummg ummo umno umor umri ungo ungu uni- unii unin unio unir unmr unni unno unon unro unum uomo uor- urbi urgi urgu urib urim urin uriu urmi urni uro- urom uroo urri urum urun urur uuni uuno uuri uuuu