SCRATCHBOARDS

aa ab ad ah ar as at ba bo do ha ho od oh or os sh so ta to

aah aas aba abo abs act ado ads aha ahs arb arc ars art ash ass baa bad bah bar bas bat boa bod bos bot bra bro brr cab cad car cat cob cod cor cos cot dab dah doc dor dos dot had hao has hat hob hod hos hot oar oat oba oca oda ods ohs ora orb orc ors ort rad rah ras rat rho rob roc rod rot sab sac sad sat sha sob sod sos sot tab tad tao tar tas tho tod tor

aahs abas abos acta acts ados arbs arch arco arcs arts baas bach bads baht bard bars bash bass bast bath bats boar boas boat bods bora bort bosh boss bota both bots brad bras brat bros cabs caca cads carb card carr cars cart casa cash cast cats chad chao char chat coat cobs coca coda cods cord cors cosh coss cost cots crab croc dabs dahs darb dart dash data dato doat docs dorr dors doss dost doth dots drab drat haar hard hart hast hats hoar hobs hods hora host hots oars oast oath oats obas ocas odah odas orad orbs orca orcs orra orts osar ossa rads rash rath rato rats rhos road roar robs rocs rods rota rots sabs sacs sard sash scab scad scar scat scot shad shat shod shot soar soba sobs soca soda sods sora sorb sord sort soth sots stab star stoa stob tabs tach taco tads tahr taos taro tars tass thro toad tods tora torc torr tors tosh toss trad trod tsar