The word Hapened is misspelled against Happened, which is past tense of "Happen"
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Happened has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings ha & ened which should not be misspelled with single 'P'
Wrong Spelling: ha-p-ened
Correct Spelling: ha-pp-ened
Explore spell check of Happened to spell without errors.