SUBTERRANEAN

aa ab ae an ar as at ba be en er es et na ne nu re ta un us ut

aas aba abs ana ane ant arb are ars art ate baa ban bar bas bat bee ben bes bet bra brr bun bur bus but ear eat eau ens era ere ern err ers eta nab nae nan neb nee net nub nun nus nut ran ras rat reb ree res ret rub rue run rut sab sae sat sau sea see sen ser set sub sue sun tab tae tan tar tas tau tea tee ten tub tun uns urb urn use uta ute uts

abas abet abut anas anes anna ansa anta ante ants anus arbs area ares arse arts asea ates aunt aura baas bane bans bare barn bars base bast bate bats bean bear beat beau been beer bees beet bene bens bent best beta bets brae bran bras brat bree bren brut buna bunn buns bunt bura burn burr burs bust bute buts earn ears ease east eats eras erne erns errs erst esne etas etna naan nabe nabs nana nans near neat nebs nene nest nets nubs nuns nuts rant rare rase rate rats rear rebs rees rent rest rete rets rube rubs ruer rues rune runs runt ruse rust ruts sabe sane sate sear seat seen seer sene sent sera sere seta snub stab star stub stun suba suer suet sunn sura sure tabs tabu tans tare tarn tars taus tear teas teen tees tens tern tree tres true tsar tuba tube tubs tuna tune tuns turn unbe urbs urea urns ursa user utas utes