Sliding or Slidding: How To spell?
The word Sliding is misspelled against Slidding, which is present continuous of "Slide"
Slidding has double "dd" is mispronounced as "d"Remember double 'DD' in between the strings Sli & ing which should not be misspelled with single 'D'
Wrong Spelling:  Sli-d-ing  Correct Spelling:  Sli-dd-ing 
Find more wrongly spelled words of Slidding to spell it well.