sper spes spet spne spns spod spon spoo spop spor spos spot sppd spps sprd spro sprs spsd spse spso spsp spss spst spto sptr spts srde sreo sres srnn srno sros srps srpt srsd srsp srtp srtr ssdd ssdp ssee ssep sses sset ssns ssop ssot sspe sspo ssps sspt ssrs ssss sstd sstp ssts stds sted stee sten steo step ster stes stet stnd stnn stnr stns stod stoe ston stoo stop stor stos stot stpd stpp stps strd stre strn stro strs stss sttd sttr tdes tdor tdse tdss tedd tede teds teed teen teer tees teet tend tene tenn teno tenp tens tent teon teor teos tepe tepp ter- tere tern tero terp terr ters tesd tese teso tesp tess test tete teto tetr tets tett tndd tnes tnsp tnts todd tode todo tods todt toed toee toen toer toes toet tone tonn tono tons tood toon toor toos toot top- topd tope topo topp tops topt tord tore torn toro torp torr tors tort tose toso toss tost totd tote toto totr tots tott tped tper tpon tppd tppp tppr tprs tpte tptp tptr tre- tred tree tren treo tres tret trno trod troe tron troo trop tros trot trpe trpn trpp trps trsd trst trte trtr tsen tses tset tsop tsos tspn tspo tsps tspt tsse tssr tsst tsts tten tteo tter ttoe tton ttop ttss tttt