-ous ffff ffrr ffss ffun fmno fmsr fmss fnrs fnuf fofo fomo fono fons foof foom foon foos for- form forn foro forr fors foso foss foun four fous frmn frns from fron fros frou frsm frso frum frun fsfo fssf fuff fufu fumo fums funf funs fuor fur- furm furn furo furr furs fuso fuss fusu mfor mfou mfrs mmff mmmm mmms mmor mmrf mmsu mmun mmus mnos moff mofo mofu momo moms momu mon- monn mono mons monu moon moor moos morf morn moro mors moru moso moss mosu mouf moun mour mous mron msff msfs msmm msms msmu mson msor mssf mssm mssr msun msus muff mufu mumm mumo mums mumu munn muno muns munu muon muos murn muro murr murs muru muso muss musu nfff nfon nfrs nfsm nfsr nfsu nmff nmfs nmon nmos nnnn nnos nnss nom- nomo noms nomu non- nonn nono nons nonu noo- noon nooo noor noos nor- norf norm norn noro norr nors nos- nosm noss nosu noun nour nous nron nsfs nsnr nsof nsos nsou nssf nsso nssr nsss nuff numm nums numu nunn nuno nuns nuon nurn nurr nurs nuru nuss nusu off- offo offr offs offu ofno ofor ofus omn- omo- omon omoo omor omro omsn omuo omus onno onon onor onos onso onur onus ooff oofs ooms oons oooo ooos oous orff orfs orfu ormn ormo orno orns oro- orof orom oron oror oros orro orrs orso orsu orum orus osm- osmo osno osnr osoo osor osos osro osso ossu osum osun ouff oun- our- ourn ouro ours ouu- rmon roff rofo romm romo roms rono rons roof room roon roor roos roro roru roso ross rouf roum roun rous rrrr rrum rrun rsnn rsno rsnr rsos rsum ruff rufo rumm rumo rums runf runn runo runs ruro rurs ruru ruso russ rusu ruun s-os sfmm sfor sfos sfro sfss sfsu smof smon smos smrf smsn smss smur smus snfu snns snom snoo snor snos snrs snum snur snus sofo somm somn somo son- sono sons sonu soof soom soon soor soos sorm sorn soro sorr sors soru soso soss souf soum soun sour sous srnn srno sros ssns ssrm ssrs sssf sssm ssss suf- suff sufr sufs sufu sum- sumo sums sumu sun- sunn suno suns sunu suor suos sur- surf surn suro surr surs suru sus- suso suss susu suum suus ufms ufos umff ummo umms umno umor umsu umus unmr unno unns unon unos unrf unro unrs uns- unso unum unus uofm uofo uomo uor- urff urns uro- urom uroo urso urss ursu urum urun urur urus usfs usmm usms usno usnr usnu usos ussf ussr usss ussu usun usus uuno uuuu