TRIFEROUS

ef er es et fe if is it oe of oi or os re si so ti to us ut

efs eft err ers fer fes fet feu fie fir fit foe for fou fro fur ifs ire its oes oft ore ors ort ose our out ref rei res ret rif roe rot rue rut sei ser set sir sit sot sou sri sue tie tis toe tor tui use ute uts

efts eros errs erst etui euro fest fets feus fire firs fist fits foes fore fort four fret frit froe furs fuse ires ores orts ours oust outs refs reft reif reis rest rets rife rifs rift riot rise rite roes rose rote roti rots roue rout ruer rues ruse rust ruts seif serf sift sire site soft sore sori sort sour stir suer suet suit sure surf tier ties tire tiro toes tofu tore tori torr tors tour tref tres trio true tuis turf user utes