Deryling or Derailing: How To spell?

The word Deryling is misspelled against Derailing, which is present continuous of "Derail"

Word contains consecutive vowels 'AI' in between alphabets der & ling is misspelled as 'Y'
Wrong Spelling: der-y-ling
Correct Spelling: der-ai-ling
Find more wrongly spelled words of Derailing to spell it well.