Constroning or Constraining: How To spell?
The word Constroning is misspelled against Constraining, which is present continuous of "Constrain"
Word contains consecutive vowels 'AI' in between alphabets constr & ning is misspelled as 'O'Wrong Spelling:  constr-o-ning  Correct Spelling:  constr-ai-ning 
Find more incorrect spellings of Constraining to spell right way.