h-ii hhhh hhhs hhip hihi hiho hiis hipo hipp hips hish hiss hiyo hoho hoip hois hoix hoop hoos hoox hopi hopo hopp hops hopx hopy hosh hosp hoss hoyi hoys hphs hpps hpss hshs hsps hssp hyo- hyp- hyph hypo hyps hypy ihis ihop ihss iiii iiio iiis iioi iioo iiop iios iisi iisp ioii ioio iooi iooo ioos iops ioso ipix ipoh ipop ipos ippo ippy ipsi ipso ipsp ipss ishi ishs isis iso- isop isos isps ispy issh issi isso issp isss issy isys ixos ixxi iyos iysh ohhi ohho ohhs ohio ohis ohoh ohos ohso ohss ohyo oiii oios ooho oohs oooh oooo ooos oops oosi ophi ophs opii opio opis opo- opos oppi oppo opps oppy opsi opsy oshi osho oshp oshs osii osip osis osoi osoo osos ossi osso ossy osyp oxi- oxis oxo- oxos oxox oxsi oxxo oxy- oyss phhs phi- phip phis phoh phoo phos phox phys piip pipi pipo pipp pips pipy pish pisi piso piss pisy pixo pixx pixy piyo piys pohs poio pois poix pooh poop poos pop- popi popo popp pops popy posh posi poso poss posy poxy poyo poys pphi pphs ppih ppos pppo pppp ppps ppsh ppss pshs psip psis psoi psos psph pspi pspp psps psso psy- psys pyo- pyos pypy pyss s-ii s-os shhh shhs shih shii shio ship shis shoo shop shos shox shps shyp sihi sihs siop sios siox sipi sipo sipp sips sipy sish sisi siss sisy sixo sixx siyi sohh soho sohp sohs sois soop soos sooy soph sopi sopo sopp sops sopy sosh sosi soso soss soxs soyo soys sphs spio spip spis spix spoo spop spos spox spoy spps spso spsp spss spy- spyh spys sshs ssis ssop sspo ssps sspx sssh sssi ssss syis syph sypo syso syss xhhp xhoi xiii xiph xisi xixi xois xoxo xoyo xxii xxix xxxi xxxo xxxx xxxy yhis yips yiss yoho yoix yoop yopo yopy yosh yosi yoso yoyo ypsi ysii ysop yspi yssh yyyy