Unbyng or Unbeing: How To spell?

The word Unbyng is misspelled against Unbeing, an adjective meaning "Not existing."

Word contains consecutive vowels 'EI' in between alphabets unb & ng is misspelled as 'Y'
Wrong Spelling:  unb-y-ng 
Correct Spelling:  unb-ei-ng 
Navigate all incorrect spellings of Unbeing to spell it right.