The word Tramelling is misspelled against Trammelling, which is present continuous of "Trammel"
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Trammelling has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings tra & elling which should not be misspelled with single 'M'
Wrong Spelling:  tra-m-elling 
Correct Spelling:  tra-mm-elling 
Find more wrongly spelled words of Trammelling to spell it well.