Construn or Constrain: How To spell?

The word Construn is misspelled against Constrain, meaning "compel"

Word contains consecutive vowels 'AI' in between alphabets constr & n is misspelled as 'U'
Wrong Spelling:  constr-u-n 
Correct Spelling:  constr-ai-n 
Check more misspelled words of Constrain to spell it correct.

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