Fauling or Failing: How To spell?
The word Fauling is misspelled against Failing, a noun meaning "A failing short; a becoming deficient; failure; deficiency; imperfection; weakness; lapse; fault; infirmity; as, a mental failing."
Word contains consecutive vowels 'AI' in between alphabets f & ling is misspelled as 'AU'Wrong Spelling:  f-au-ling  Correct Spelling:  f-ai-ling 
Check more misspelled words of Failing to spell it correct.