Percaiving or Perceiving: How To spell?

The word Percaiving is misspelled against Perceiving, which is present continuous of "Perceive"

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