Rainvestigate or Reinvestigate: How To spell?

The word Rainvestigate is misspelled against Reinvestigate, a verb meaning "To investigate again."

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