Hapen or Happen: How To spell?
The word Hapen is misspelled against Happen, a verb meaning "To come by chance; to come without previous expectation; to fall out."
Happen has double "pp" is mispronounced as "p"Remember double 'PP' in between the strings ha & en which should not be misspelled with single 'P'
Wrong Spelling:  ha-p-en  Correct Spelling:  ha-pp-en 
Explore spell check of Happen to spell without errors.