Instaarating or Instaurating: How To spell?

The word Instaarating is misspelled against Instaurating, which is present continuous of "Instaurate"

Word contains consecutive vowels 'AU' in between alphabets inst & rating is misspelled as 'AA'
Wrong Spelling:  inst-aa-rating 
Correct Spelling:  inst-au-rating 
Find more wrongly spelled words of Instaurating to spell it well.

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