The word Percaeving is misspelled against Perceiving, which is present continuous of "Perceive"
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Word contains consecutive vowels 'EI' in between alphabets perc & ving is misspelled as 'AE'
Wrong Spelling:  perc-ae-ving 
Correct Spelling:  perc-ei-ving 
Find more wrongly spelled words of Perceiving to spell it well.