The word Leching is misspelled against Leeching, which is present continuous of "Leech"
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Leeching has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings L & ching which should not be misspelled with single 'E'
Wrong Spelling:  L-e-ching 
Correct Spelling:  L-ee-ching 
Find more wrongly spelled words of Leeching to spell it well.