Toboganing or Tobogganing: How To spell?
The word Toboganing is misspelled against Tobogganing, which is present continuous of "Toboggan"
Tobogganing has double "gg" is mispronounced as "g"Remember double 'GG' in between the strings tobo & aning which should not be misspelled with single 'G'
Wrong Spelling:  tobo-g-aning  Correct Spelling:  tobo-gg-aning 
Find more incorrect spellings of Tobogganing to spell right way.