Quarreling or Quarrelling: How To spell?
The word Quarreling is misspelled against Quarrelling, which is present continuous of "Quarrel"
Quarrelling has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings quarre & ing which should not be misspelled with single 'L'
Wrong Spelling:  quarre-l-ing  Correct Spelling:  quarre-ll-ing 
Check more misspelled words of Quarrelling to spell it correct.