Pebling or Pebbling: How To spell?
The word Pebling is misspelled against Pebbling, which is present continuous of "Pebble"
Pebbling has double "bb" is mispronounced as "b"Remember double 'BB' in between the strings Pe & ling which should not be misspelled with single 'B'
Wrong Spelling:  Pe-b-ling  Correct Spelling:  Pe-bb-ling 
Find more wrongly spelled words of Pebbling to spell it well.