The word Motling is misspelled against Mottling, which is present continuous of "Mottle"
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Mottling has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings mo & ling which should not be misspelled with single 'T'
Wrong Spelling:  mo-t-ling 
Correct Spelling:  mo-tt-ling 
Find more incorrect spellings of Mottling to spell right way.