-ing bbbb bbin bbng bbpr bbrg bgon bibb bibi bibo bigb bigg bign bigo bigt biin bin- bing bini binn bino bint bio- biog bioi bion biot bipp birb birg biri birn biro birr birt bito bitt bnib bnin bnor bnpp bnrr bobb bobi bobo bogg bogi bogo bogt boi- boii boin boit bong boni bonn bono bont boob boog boon boop boor boot bopp bor- borg bori born boro borr bort botb boti botn boto bott bpot bpti brig brin brio brit brno brob brog bron broo bror brot brrr btbp btob btor btrt bttb gbbo gbon ggbt gggg ggpo ggrn gibb gigg gigi gign gigo ging gini ginn gino giog gioi gion giop gipi gipp girg giri girn giro girr girt gito gnib gnin gnip gnit gnoo gnrr gnti gntp gobi gobo gogi gogo goin goip goit gon- gong goni gonn gono goog gooi goon goop goor goot gopi gopo gorb gorg gori gorn goro gorp gorr gort goti goto gott gpgp gpip gpot gprp grbr grib grig grin grip grit grni grob grog groi gron groo grop gror grot grrr gtbr gtip gtop i-go i-no ibon ibot ibri ibro ibtb igbo igni igno igon igoo igor igot igri iiii iiio iiit iino iioi iioo iiop iitr iitt inbo ingo inig init inni inno innr ino- inoi inon inor inot inp- inpi inpp inpt inri inro intg inti intn into intp intr iobi iogt ioii ioio ioit ioni ionn iono iooi iooo iorg iori ioto ipin ipop ippo ippr ipri ipto irbp iri- irig irin irio irip irob iron irop irri irti irtp itgo itin itno itoi iton itoo itor itri itto n-ii nbbo nbpp nbti ngio ngon ngor ngri ngtn nibi nibo nigg nigo nigt niip niir niit ning nini nino niog nion nioo nipr nipt niro nirt nitb niti nito nitr nngn nnit nnnn nnot nnpi nnpr nntn nobi nobo nogg nogo nogt noib noin noio noir noit non- nong noni nonn nono nont noo- noob noon nooo noop noor noot nor- norb norg nori norn noro norr nort not- noti noto nott npin npri nprt nptn nron nrpn ntop ntto nttr obbo obin obit oboi obon obor obot obri obro ogb oggi ogin ogni ogog ogoi ogon ogri ogro oigo oiii oint oion oirt oiti ongi ongo onir onit onni onno onon onor onpg onpt ont- onti onto oobi oont oooo oort ootb ootp opii opin opio opit opng opo- opon opor oppi oppo opti optn opto orbb orbi orbo orgn orgo ori- orig orin orio orit orni orno oro- oron oror orot orpi orri orro orto otin otit oto- otog oton otoo otor otpp otro otti otto pgib pibb pibi pigb pigg pign pigo pigp pigt piip ping pini pinn pino pinp pint piob pion piot pipi pipo pipp pirg piri pirn piro pirr piti pito pitr pitt pnin pnon pnot pnpo pnpp pnro pntr pobo pogg pogo poin poio pong poni pono ponp pont poon poop poor poot pop- popi popo popp popt porb porg pori porn poro porr port poti poto pott ppgi ppib ppig pppn pppo pppp pptn pptt pri- prig prii prin prnp pro- prob prog pron proo prop prot prri prti prtp prtr ptop rbbb rbbr rgbi rgit rgtr rib- ribo rigg rigi rigo riin ring rinn rino rion riot ripi ripp ripr ript riri riti rito ritt rnbr rnin rnnt rnot rntp rob- robb robi robo robt rogg rogi rogo roig roin roio roir roit rong roni rono ront roob roog rooi roon roop roor root ropo rori roro rort rotg roti rotn roto rotr rott rpii rpob rpon rppn rptn rrrr rttp tbit tbrb tbtp tibi tigi tigr tiit ting tini tinn tino tint tion tiop tip- tipi tipo tipp tipt tirb tiri tiro tirr titi tito titp titt tobi tobo tobt togo togr togt toit tonb tong toni tonn tono toon toor toot top- topi topo topp topt torg tori torn toro torp torr tort toti toto totr tott tpbg tpir tpon tppp tppr tptp tptr tri- trib trig trin trio trip trit trng trno trog troi tron troo trop trot trpg trpn trpp trtr ttbb tton ttop tttt