The word Forstal is misspelled against Forstall, a verb meaning "To forestall."
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Forstall has double 'll' in the end mispronounced as 'l'
Remember double 'LL' appears in the end of this word which should not be misspelled with single 'L'
Wrong Spelling:  forsta-l 
Correct Spelling:  forsta-ll 
Find more incorrect spellings of Forstall to spell right way.