-ing dddd ddpo didi dido didu digg digi digo diii din- ding dini dinn dino dinu dion diop dior diou dipn dipo dipp dipu dird dirr dnpo dod- dodd dodg dodi dodo dog- dogg dogi dogo dogp dogu doid doig doin dond dong doni donn dono donp donr dood doon doop door dopo dopp dopr dord dori dorn doro dorp dorr doru doud doug doun doup dour dpin dpni dprg drin drip drno drod drog dron drop drou drug drui drup druu dudd dudo dudu dugu duid duin duir dung dunn duno duo- duon dupo durg duri durn duro duru duur gdor gggg ggpo ggrn gidd gidi gido gigg gigi gign gigo ging gini ginn gino ginu giog gioi gion giop gipi gipp gird girg giri girn giro girr giru giur gnin gnip gnod gnoo gnrr godi godo gogi gogo goin goip gon- gond gong goni gonn gono gonu good goog gooi goon goop goor gopi gopo gopu gord gorg gori gorn goro gorp gorr gou- goud goug goun goup gour gpgp gpip gprd gprp grid grig grin grip grni grod grog groi gron groo grop gror grou grrr grug grui grun grur gudi gudo gudu gugg gugi gugu guid guin gund gung gunn gurd gurg guri gurn guro gurr guru i-go i-no iddo idgo idid idig idin idio idir idno idog idon idro idun iduo igni igno ignu igon igoo igor igri iiii iiio iino iioi iioo iiop ind- indi indo indu ingo inid inig inni inno innr innu ino- inoi inon inor inou inp- inpi inpp inri inro inui inun inup iod- iodd iodo ioii ioio ioni ionn iono iooi iooo iorg iori ioug ioun ipdi ipid ipin ipod ipop ippo ippr ipri ipur irdo irdp iri- irid irig irin irio irip irod iron irop irri irun iuiu iuno iupp n-ii n-up nddo ndnp ndop ndor ndpd ndpr ndri ngio ngon ngor ngou ngri ngur nguu nidd nidi nido nigg nigo niip niir niiu nind ning nini nino niog nion nioo niou nipr niro niru niur nngn nnnn nnpi nnpr nodi nodo nodu nogg nogo noid noin noio noir non- nong noni nonn nono nonu noo- noon nooo noop noor nor- nord norg nori norn noro norr noun noup nour npin nppd npri nron nrpn nrrd nudd nudi nudo nuin nung nunn nuno nuon nurd nuri nurn nurp nurr nuru oddd oddi odin odio odir odiu odon odoo odop odor odou odrp odur oggi ogin ogni ogod ogog ogoi ogon ogou ogpu ogri ogro ogui ogun oido oigo oiii oion ondi ondo ongi ongo ongu onir onni onno onod onon onor onpg onpu onup onur oodi ooid oooo oord opii opin opio opng opo- opon opor oppi oppo ordn ordo ordu orgn orgo ori- orid orig orin orio orni orno oro- oron oror orpi orri orro orup ouii ouin ouir oun- ound oung our- ourn ouro ouu- pdpn pdpr pgdn pgou pgpu pgup pido pigg pign pigo pigp pigu piip pind ping pini pinn pino pinp pinu pion pipi pipo pipp pirg piri pirn piro pirr piru pnin pnon pnpo pnpp pnro pnup pod- podd podi podo podu pogg pogo poid poin poio pond pong poni pono ponp pood poon poop poor pop- popi popo popp porg pori porn poro porr poud poui poun poup pour ppgi ppid ppig ppod pppd pppn pppo pppp ppru ppur pri- prid prig prii prin prnd prnp pro- prod prog pron proo prop prou prpd prrd prri prud pruu pudo pudu pugo pugu puid puig puin puir puiu pund pung puno punu pupi pupu pur- purg puri puro purp purr puru rdio ridd ridi rido rigg rigi rigo rigu riin rind ring rinn rino rion riou ripd ripi ripp ripr riri rndp rnin rnod rodd rodi rodo rogg rogi rogo roid roig roin roio roir roiu rond rong roni rono rood roog rooi roon roop roor ropo rori roro roru roud roun roup rpdp rpii rpon rppn rrrr rrun rudd rudi rudo rudp rugg rugi ruid ruin rund rung runi runn runo rupp rurd ruri ruro rurp ruru ruud ruun u-rp uddi udid udig udin udir udon udoo udop udpd udun uggo ugni ugod ugri ugro ugur uguu uipi uirr undi undo ungo ungp ungu uni- unii unin unio unir unni unno unon unop unro uor- updo upgo upin upnp upon upor uppp uppu upri upup urdu urgi urgu urin uriu urni uro- uroo urpo urri urun urup urur uuni uuno uuri uuuu