bfrog bhour bo-bo bo-ho bobr boffo bogof bogor bogu bogur bohor booru borbo borgh borgo borgu boro- boroo borou borro bough bourg brobo brogh brrrr bruff brugg brugh buffo bugoo buoho burgh burgo burgu buroo burro burru fogbo foggo fogou forgo forro foruh forur fough fougo fourb fourg fourh fouro frugo fu-fu fugro fugug furbo furo- furor ghoff ghour ghubb go-go go-oo gobbo gofor gogro gohog gohor gohur goobo gooff goooh gorgo goruh gough grgur groff grogg groof grouf grrrr grubb gruff gubbo gubru guroo gurro gurur hbogo hhhhh hhour ho-ho ho-oh hobor hobro hobub hofuf horro horru houff hough hu-go hubur huggo huhuh huuru o-r-b obhor oboro offof ofour oghur ogogo ogugu oh-oh ohfoo ohour ohrob ooooh ooooo orfor orobo orrgo oruro ouoro ro-ro robbo robo- robor robur rofor rogho rohff rohob rohru rorbu rough rubof rubor ruffo rufo- rughh ruhub ubobo ufofu uforb ugoff ugro- ugrug uh-oh uh-uh uhhoh uhhuh uhuru uroob urour urubu uuuuu