hhhhh ho-ho ho-oh hohot hohum homo- honno hopon hoppo hopto hopup hoton hotot hotto hount houtu htuom huhuh humph hunth hunut hutto huttu hutup mmhmm mmmmm mohon mohun momot monno mono- monon month monto montt montu mooth mooto mopup motho moto- moton motto mottu mouht mount mouth mt-th mt-tm mt-tn mt-tp mt-tt mtoto mummu mumun munnt munot munto muppu muthu muto- muton mutum mutuo muuto n-p-n nnooo no-no no-op nohno nohom nohup nohut nommo nomo- nomom non-u nonno nonoh nonop nonot noonu nopun noth- notht notno noto- noton notto notum notup ntoum nu-nu nuhuh nunon nunun nuton o-hum oh-oh ohmmm omont omoon omoto omout omupo onhot onmun onont onoon onoto onout onpop onpot onto- ontoo ontop oomph ooooh ooooo opnto opoho oppon oppum opto- optot optto opump othom othon othou otomo otono ototo ottom outon outto p-n-p phnom phon- phono phot- photo photu phpht phtpp phutu po-on po-po pompu pomum ponnu ponto ponup poopo popon popop poppo popup potom poton potoo potop potto pottu pptnt puhmu puhtu punon punto puppo putno puton putt- putto puttu putun putuo putup t-nut t-pop t-top thomm thoom thoon thoth thout thttp thump tntnt to-ho tohot tommo tomo- tomom tono- tonto tonup tooth topo- topon topot toppo topto topup toto- toton totoo totop totum totup touho ttttt tu-mo tummo tumon tumut tunon tuomo tuotu tupou tutto tutun u-pop uh-oh uh-uh uhhoh uhhuh umhum unhot unnun unnut unpot unput untop uppon upput upton uptop ututo uuuuu