Spaning or Spanning: How To spell?
The word Spaning is misspelled against Spanning, which is present continuous of "Span"
Spanning has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings spa & ing which should not be misspelled with single 'N'
Wrong Spelling:  spa-n-ing  Correct Spelling:  spa-nn-ing 
Find more wrongly spelled words of Spanning to spell it well.