Curtoling or Curtailing: How To spell?

The word Curtoling is misspelled against Curtailing, which is present continuous of "Curtail"

Word contains consecutive vowels 'AI' in between alphabets curt & ling is misspelled as 'O'
Wrong Spelling: curt-o-ling
Correct Spelling: curt-ai-ling
Check more misspelled words of Curtailing to spell it correct.