THRIFTIEST

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efs eft ers eth feh fer fes fet fie fir fit her hes het hie his hit ifs ire its ref rei res ret rif sei ser set she sir sit sri tet the tie tis tit

efts erst eths fehs fest fets fire firs fish fist fits fret frit heft heir hers hest hets hies hire hist hits ires iris refs reft reif reis resh rest rets rife rifs rift rise rite seif serf sett shit shri sift sire site sith stet stir test teth tets thir this tier ties tire titi tits tref tres tret