Moing or Mooing: How To spell?
The word Moing is misspelled against Mooing, which is present continuous of "Moo"
Mooing has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings m & ing which should not be misspelled with single 'O'
Wrong Spelling:  m-o-ing  Correct Spelling:  m-oo-ing 
Find more incorrect spellings of Mooing to spell right way.