Knaping or Knapping: How To spell?
The word Knaping is misspelled against Knapping, which is present continuous of "Knap"
Knapping has double "pp" is mispronounced as "p"Remember double 'PP' in between the strings kna & ing which should not be misspelled with single 'P'
Wrong Spelling:  kna-p-ing  Correct Spelling:  kna-pp-ing 
Find more wrongly spelled words of Knapping to spell it well.