SERPENTILE

el en er es et in is it li ne pe pi re si ti

eel els ens ere ern ers ins ire its lee lei les let lie lin lip lis lit nee net nil nip nit pee pen per pes pet pie pin pis pit psi pst ree rei rep res ret rin rip see sei sel sen ser set sin sip sir sit sri tee tel ten tie til tin tip tis

eels else epee erne erns erst esne ires isle leer lees leet leis lens lent lept lest lets lien lier lies line lins lint lipe lips lire lisp list lite lits neep nest nets nils nips nite nits peel peen peer pees pein pele pelt pens pent pere peri pert pest pets pier pies pile pine pins pint pirn pits plie pree reel rees rein reis rent reps rest rete rets riel rile rins ripe rips rise rite seel seen seep seer sene sent sept sere silt sine sipe sire site slip slit snip snit spin spit step stir teel teen tees tele tels tens tern tier ties tile tils tine tins tips tire tirl tree tres trip