The word Coging is misspelled against Cogging, which is present continuous of "Cog"
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Cogging has double "gg" is mispronounced as "g"
Remember double 'GG' in between the strings co & ing which should not be misspelled with single 'G'
Wrong Spelling:  co-g-ing 
Correct Spelling:  co-gg-ing 
Find more incorrect spellings of Cogging to spell right way.