use '?' for JOKER (blank)

From letters H, E, A, R, T, B, U, R, N, I, N, G, S  I made following words

13 letter words

heartburnings[19]

12 letter words

heartburning[18]

10 letter words

harbingers[16], breathings[16], bushranger[16], burthening[16], sunbathing[16], heartburns[15], unearthing[14], interurban[12], renaturing[11], sauntering[11], garnitures[11], treasuring[11]

9 letter words

harbinger[15], breathing[15], brightens[15], burnisher[14], heartburn[14], sunbather[14], garnisher[13], hastening[13], naethings[13], ingathers[13], naughtier[13], naughties[13], enthusing[13], hungriest[13], bantering[12], bartering[12], absenting[12], breasting[12], unbearing[12], unbarring[12], unhairers[12], bannister[11], branniest[11], antibuser[11], braunites[11], urbanites[11], turbaries[11], gannister[10], arresting[10], serrating[10], garniture[10], returning[10], unseating[10], gauntries[10], signature[10], insurgent[10], unresting[10], saturnine[9]

8 letter words

berthing[14], brighten[14], brighter[14], barghest[14], bearhugs[14], brushing[14], burghers[14], unbright[14], banisher[13], brashier[13], absinthe[13], rebirths[13], airbrush[13], brushier[13], habitues[13], sunbathe[13], burthens[13], hearings[12], hearsing[12], shearing[12], gharries[12], herrings[12], naething[12], earthing[12], hearting[12], ingather[12], gahnites[12], hangnest[12], sennight[12], trashing[12], righters[12], hungrier[12], unhinges[12], ushering[12], haunting[12], shantung[12], huntings[12], shunting[12], bearings[11], sabering[11], bringers[11], berating[11], rebating[11], tabering[11], beatings[11], bantengs[11], hairnets[11], inearths[11], therians[11], thinners[11], trashier[11], unhairer[11], burnings[11], subagent[11], buntings[11], barguest[11], thesauri[11], haunters[11], unearths[11], urethans[11], bursting[11], urethras[11], brannier[10], branners[10], banister[10], barniest[10], arbiters[10], rarebits[10], inurbane[10], urbanise[10], braunite[10], urbanite[10], urbanest[10], urbanist[10], tribunes[10], turbines[10], airburst[10], bruiters[10], burriest[10], aginners[9], earnings[9], engrains[9], grannies[9], earrings[9], grainers[9], grinners[9], antigens[9], gentians[9], angriest[9], astringe[9], ganister[9], gantries[9], granites[9], ingrates[9], rangiest[9], granters[9], regrants[9], stranger[9], starring[9], restring[9], stringer[9], unerring[9], guanines[9], sanguine[9], ensuring[9], sugarier[9], retuning[9], tenuring[9], sauteing[9], unitages[9], tunnages[9], turnings[9], unstring[9], grunters[9], restrung[9], insnarer[8], inerrant[8], entrains[8], trannies[8], restrain[8], retrains[8], strainer[8], terrains[8], trainers[8], aneurins[8], ruinates[8], taurines[8], uranites[8], urinates[8], insurant[8], runniest[8]

7 letter words

hearing[11], beaning[10], bearing[10], barning[10], barring[10], bringer[10], barnier[9], aginner[8], earning[8], engrain[8], grannie[8], nearing[8], angrier[8], earring[8], grainer[8], rangier[8], rearing[8]