The word Overseing is misspelled against Overseeing, which is present continuous of "Oversee"
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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.