The word Pinacling is misspelled against Pinnacling, which is present continuous of "Pinnacle"
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Pinnacling has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings pi & acling which should not be misspelled with single 'N'
Wrong Spelling:  pi-n-acling 
Correct Spelling:  pi-nn-acling 
Find more wrongly spelled words of Pinnacling to spell it well.