The word Croning is misspelled against Crooning, which is present continuous of "Croon"
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Crooning has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings cr & ning which should not be misspelled with single 'O'
Wrong Spelling:  cr-o-ning 
Correct Spelling:  cr-oo-ning 
Find more incorrect spellings of Crooning to spell right way.