Prainstruct or Preinstruct: How To spell?

The word Prainstruct is misspelled against Preinstruct, a verb meaning "To instruct previously or beforehand."

Word contains consecutive vowels 'EI' in between alphabets pr & nstruct is misspelled as 'AI'
Wrong Spelling:  pr-ai-nstruct 
Correct Spelling:  pr-ei-nstruct 
Check more misspelled words of Preinstruct to spell it correct.