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