use '?' for JOKER (blank)

From letters B, A, C, K, B, E, N, D, S  I made following words

9 letter words

backbends[20]

8 letter words

backbend[19]

7 letter words

scabbed[14], snacked[14]

6 letter words

backed[15], kebabs[14], cabbed[13], banked[13], basked[13], casked[13], sacked[13], nabbed[11], sabbed[11], kneads[11], snaked[11], ascend[9], dances[9]

5 letter words

kebab[13], backs[13], becks[13], baked[12], caked[12], decks[12], bakes[11], beaks[11], cakes[11], banks[11], snack[11], necks[11], sneck[11], knead[10], naked[10], asked[10], abbes[9], babes[9], kanes[9], skean[9], snake[9], sneak[9], baned[8], acned[8], caned[8], dance[8], based[8], beads[8], sabed[8], cades[8], cased[8], daces[8], bands[8], bends[8], scend[8], banes[7], beans[7], nabes[7], acnes[7], canes[7], scena[7], deans[6], saned[6], sedan[6]

4 letter words

back[12], beck[12], deck[11], bake[10], beak[10], cake[10], bank[10], neck[10], bask[10], kabs[10], cask[10], sack[10], dank[9], daks[9], desk[9], abbe[8], babe[8], kane[8], cabs[8], scab[8], ebbs[8], kaes[8], keas[8], sake[8], sank[8], kens[8], abed[7], bade[7], bead[7], aced[7], cade[7], dace[7], band[7], bend[7], bads[7], dabs[7], cads[7], scad[7], beds[7], debs[7], bane[6], bean[6], nabe[6], acne[6], cane[6], base[6], sabe[6], aces[6], case[6], bans[6], nabs[6], cans[6], scan[6], bens[6], nebs[6], dean[5], sade[5], ands[5], dans[5], sand[5], dens[5], ends[5], send[5], sned[5], anes[4], sane[4]

3 letter words

kab[9], dak[8], cab[7], ebb[7], kae[7], kea[7], ken[7], ask[7], kas[7], ska[7], bad[6], dab[6], cad[6], bed[6], deb[6], ace[5], ban[5], nab[5], can[5], ben[5], neb[5], abs[5], bas[5], sab[5], sac[5], bes[5], sec[5], and[4], dan[4], den[4], end[4], ads[4], sad[4], eds[4], ane[3], nae[3], sae[3], sea[3], ens[3], sen[3]

2 letter words

ka[6], ab[4], ba[4], be[4], ad[3], de[3], ed[3], ae[2], an[2], na[2], en[2], ne[2], as[2], es[2]