Stenciling or Stencilling: How To spell?
The word Stenciling is misspelled against Stencilling, which is present continuous of "Stencil"
Stencilling has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings stenci & ing which should not be misspelled with single 'L'
Wrong Spelling:  stenci-l-ing  Correct Spelling:  stenci-ll-ing 
Find more wrongly spelled words of Stencilling to spell it well.