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