BACKMOST

ab am as at ba bo ka ma mo om os so ta to

abo abs act ask bam bas bat boa bos bot cab cam cat cob cos cot kab kas kat koa kob kos mac mas mat moa mob moc mos mot oak oat oba oca oka oms sab sac sat ska sob som sot tab tam tao tas tom tsk

abos acts ambo amok atom back bams bask bast bats boas boat bock bosk bota bots cabs camo cams cask cast cats coat cobs coma comb cost cots kabs kats koas kobs mack macs mako mask mast mats moas moat mobs mock mocs mosk most mots oaks oast oats obas ocas okas sack scab scam scat scot skat soak soba soca sock soma stab stoa stob tabs tack taco tams taos task tomb toms