c-cor ccccc cech ceche ceco- ceere cefcu cefor ceoce ceoor cerc- cerce cerco cerec cerer cero- ceroc cerou cerre cerro cfhof cfour cfu-e chech cheer chefe cheff cheho chehr cheo chere chero cheru cheue chher choco choff choof choor chor- chore choro choue chueh chuff chur- chure churr churu co-co cocc- cocce cocco coceo coche cocur coeur cofer coffe cofre cofur cohee cohoe cohoo cohue cooch cooee cooer coore corce core- coree corer coreu corfe corfo corfu coro- corre couch couco couer couhe coure couru crece creer creo- creu- creue croce croco crooe crore cruce crufe cruor crure cuche cuero cufeu cuffe cufre cuoco cuore curce curch curer curre curro eccho ecoff eeeee efere effer efore efuru eocho eochu eofor eorre erech erere eroor erore error eucre euro- eurre feche feeor feere fefor feher feoff ferce ferch ferr- ferre ferro feuer focer foche foore force forch fore- foreh foreo forro foruh forur fouch fouee foure fourh fouro freeh freer frere freur frore fu-fu fuchu fuco- fuero fuoco furch furo- furor h-cho hcooh he-he he-ro hecco heche heere hefer heffe heore herce heroe herre herro herur heuch heuer heure hhfce hhhhh hhour ho-ho ho-oh hocco hoche hofer hofuf hohoe hooce hooch hooer hoore horce horch horhe horre horro horru houce houch houff hourc houre hreoc hrere hroch hucch huche hucho hueco huere huffe huhuh hureh hurre huuru o-fer occur ocher ochre ochro ocoee ocree oeco- offer offof offre ofher ofour oh-oh ohchr ohfoo ohour oo-er oocre ooher ooooh ooooo orech oreco oreo- orere orero orfeh orfeo orfeu orfoe orfor oroch oroco oroer oruce oruch oruro ouche oucho ouoro ource oure- r-co- recce recco reche recue recur reece reech reefe reere reerh refco refer reffe reffo rehco reher rehoe rehue rere- reree reuer rheo- rhoeo ro-ro rocco roche rocor rocou roero roffe rofor rohff rohru rooer roofe roore rooue rorer rouch rouer roufe rouhe roure rucer ruche ruere ruffe ruffo rufo- rurec u-cee ucero uchee ucheh uchuu ufere ufofu uh-ee uh-oh uh-uh uhecr uhhoh uhhuh uhuru uouee urech ureo- urour uruce urucu uuuuu