Overseing or Overseeing: How To spell?
The word Overseing is misspelled against Overseeing, which is present continuous of "Oversee"
Overseeing has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings Overs & ing which should not be misspelled with single 'E'
Wrong Spelling:  Overs-e-ing  Correct Spelling:  Overs-ee-ing 
Find more wrongly spelled words of Overseeing to spell it well.