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