Inruling or Inrailing: How To spell?

The word Inruling is misspelled against Inrailing, which is present continuous of "Inrail"

Word contains consecutive vowels 'AI' in between alphabets inr & ling is misspelled as 'U'
Wrong Spelling: inr-u-ling
Correct Spelling: inr-ai-ling
Check more misspelled words of Inrailing to spell it correct.