Seaing or Seeing: How To spell?

The word Seaing is misspelled against Seeing, which is present continuous of "See"

Word contains consecutive vowels 'EI' in between alphabets se & ng is misspelled as 'AI'
Wrong Spelling:  se-ai-ng 
Correct Spelling:  se-ei-ng 
Find more wrongly spelled words of Seeing to spell it well.