The word Efervescing is misspelled against Effervescing, which is present continuous of "Effervesce"
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Effervescing has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings E & ervescing which should not be misspelled with single 'F'
Wrong Spelling: E-f-ervescing
Correct Spelling: E-ff-ervescing
Find more wrongly spelled words of Effervescing to spell it well.