The word Swalowing is misspelled against Swallowing, which is present continuous of "Swallow"
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Swallowing has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings swa & owing which should not be misspelled with single 'L'
Wrong Spelling:  swa-l-owing 
Correct Spelling:  swa-ll-owing 
Find more incorrect spellings of Swallowing to spell right way.