bgia bgst bgtw biaf biao bias biat biba bibb bibi bibo bibs bifa biff bifi biga bigb bigg bigo bigs bigt bigw biis bio- biog bioi bios biot bis- bisa biso biss bist bita bito bits bitt biw- biwa boab boag boai boas boat boba bobb bobi bobo bobs bobw bofa boff bofs boga bogg bogi bogo bogs bogt boi- boii bois boit boob boof boog boos boot boow bosa bosi boso boss bost bota botb boti boto bots bott botw bowa bowi bows bowt bsaa bsas bsat bsaw bsfa bsff bsfs bsgs bsos bsts btaa btaf btob btss bttb btwo bwaa bwog faaa faas faba fabi fabo fabs fafa faff fafg fafi fafo fagg fagi fago fags faio fais fait fasa fasi faso fass fast fata fatf fati fato fats fatt fawf fawt fbis ffff ffii ffsa ffss fftf fftw fgts fiaa fiaf fias fiat fiba fibs fifa fiff fifi fifo fift figa figg figo figs fiii fios fisa fisi fiss fist fita fiti fits fitt foaf foba fobs fobt fofo fogg fogi fogo fogs foia fois foof foos foot fosa fosb fosi foso foss fost fota foti foto fots fott fotw fsai fsas fsfi fsfo fsgs fsia fssa fssf fsta ftii ftos ftsa fttw ftwo fwiw gaas gaba gabb gabi gabo gabs gabt gafa gafb gaff gafi gaft gaga gagg gagi gago gags gaia gaig gais gait gaos gasa gasb gasi gaso gass gast gata gati gato gats gatt gawa gawf gbag gbas gbbo gbbs gbtw gffa gfoa ggbt ggfg gggg ggss giaa giai gias giat giba gibb gibs giff gifs gift giga gigg gigi gigo gigs giis giog gioi gisa giss gist gita gito gits giwa giws goaf goai goas goat goba gobi gobo gobs goff goga gogi gogo gogs goif gois goit goof goog gooi goos goot gosi goso goss gost gota goti goto gots gott gowf gowt gsab gsat gsif gsis gsos gtaa gtfo gtos gtta gwai gwas gwis gwtw i-go iaaa iaai iaas iaat iaba iaff iago iags iaia iais iasa iasi iaso iata iati iawa ibas ibat ibfi ibga ibia ibis ibos ibot ibsa ibsf ibss ibtb ibts ibwa ifaa ifao ifas ifat ifaw ifbb ifis ifit ifsa ifsb ifso ifta ifto igas igba igbo igfa igga iggs igia igis igoo igot igso iias iifa iiii iiio iiis iiit iioi iioo iios iisi iist iita iitt iiwi ioba iobi iogt ioii ioio ioit ioof iooi iooo ioos ioso iota iotf ioto iowa is-a isaf isai isao isas isat isaw isba isbt isfa isia isis isit iso- isof isos issa issf issi isso isss ista isti isto ists itaa itaf itai itas itat itaw itbs itfa itgo itgs itia itif itis itof itoi itoo itos itsa itsf itsi itso itta ittf itto itwa iwai iwao iwas iwbf iwig iwis iwiw oafo oafs oais oasi oass oast oats obai obas obba obbo obia obis obit oboi obos obot obss obst obts ofas off- offa offo offs ofgo ofit ofst ofta ogai ogb ogba oggi ogoa ogog ogoi ogsi ogwa oiba oigo oiii oios oist oita oiti ooaa ooba oobi ooff oofs ooia oooo ooos oosa oosi oost ootb oots ootw osaf osag osai osas osat osba osfa osgi osia osii osis osoi osoo osos osow ossa ossb ossi osso osta osti osts otas otbs otif otis otit oto- otof otog otoo otos otow otsa otsg otso otta otti otto otts otwo owai owia owow owsa owt- owtt owwa s-ib s-ii s-os saab saaf saag saas saat saba sabb sabi sabo sabs safa safb saff safi safo saft saga sagg sagi sago sags sagt saia saif sais sait saoi saos sasa sasf sasi saso sass sast sata satb satg sati sato sats satt sawa sawf sawi saws sawt sbaa sbai sbas sbbs sbia sbig sbot sbsa sbsi sbst sfas sfba sfia sfio sfog sfos sfss sfts sfwa sgaa sgaw sggg sggs sgio sgss sgta sgts siaa siab siaf siag siai sias siat siba sibi sibo sibs sifa siff sifo sift siga sigg sigi sigo sigs siit sios siot sisa sisi siss sist sit- sita siti sito sits sitt siwa siwi soas soat soaw soba sobo sobs sobt sofa sofi sofo soft soga sogi sogo sogs soia soif sois soit soof soog soos soot sosa sosi soso soss sost sota soto sots sotw sowa sowf sowi sows sowt ssaa ssab ssao ssas ssat ssaw ssgs ssgt ssis ssit ssot sssa sssb sssf sssi ssss ssta sstb ssts ssws stab stag stai stas stat staw stbs stfw stia stib stif stig stio stis stit stoa stob stof stog stoo stos stot stow stsf stsi stss swab swaf swag swai swas swat swbs swbw swgb swig swis swit swob swog swoo swot swow swss swtg swts taa- taaf taag taas taat taba tabb tabi tabo tabs tafa taff tafi tafo taft taga tagg tagi tago tags taia taig taio tais tait taoa taos tasa tasb tasi tass tast tata tatb tati tato tats tatt tawa tawi tawo taws tawt taww tbaf tbas tbbs tbgs tbit tbst tbta tfot tfsi tfss tgfa tgif tgts tiaa tiab tiaf tiao tias tiba tibi tibs tifa tiff tifo tift tiga tigi tigs tiit tios tisa tisb tisi tiso tiss tist tita titi tito tits titt tiwa tiwi toab toas toat toaw toba tobi tobo tobs tobt tofa toff tofi tofo toft toga togo togs togt tois toit tooa toof toos toot tosa tosb tosi toso toss tost tota toti toto tots tott towa tows tsaa tsai tsao tsat tsgt tsia tsig tsis tsob tsoi tsos tssa tssf tssg tssi tsst tsts tswa ttab ttbb ttfa ttff ttss tttt twag twas twat twbt twi- twib twig twis twit two- twoa twob twof twoo twos twot twss waaa waaf waag waai waao waas waat waaw waba wabb wabf wabg wabi wabo wabs wabt wabw wafa wafb waff wafi wafs waft waga wagf wagg wagi wago wags wagt waia waif waio wais wait waob waoo waos waow wasa wasb wasf wasg wasi waso wass wast wata