Surbeding or Surbedding: How To spell?
The word Surbeding is misspelled against Surbedding, which is present continuous of "Surbed"
Surbedding has double "dd" is mispronounced as "d"Remember double 'DD' in between the strings Surbe & ing which should not be misspelled with single 'D'
Wrong Spelling:  Surbe-d-ing  Correct Spelling:  Surbe-dd-ing 
Check more misspelled words of Surbedding to spell it correct.