The word Stopling is misspelled against Stoppling, which is present continuous of "Stopple"
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Stoppling has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings sto & ling which should not be misspelled with single 'P'
Wrong Spelling:  sto-p-ling 
Correct Spelling:  sto-pp-ling 
Find more incorrect spellings of Stoppling to spell right way.