Retening or Retaining: How To spell?

The word Retening is misspelled against Retaining, which is present continuous of "Retain"

Word contains consecutive vowels 'AI' in between alphabets ret & ning is misspelled as 'E'
Wrong Spelling: ret-e-ning
Correct Spelling: ret-ai-ning
Find more wrongly spelled words of Retaining to spell it well.