Lufing or Luffing: How To spell?

The word Lufing is misspelled against Luffing, which is present continuous of "Luff"

Luffing has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Lu & ing which should not be misspelled with single 'F'
Wrong Spelling: Lu-f-ing
Correct Spelling: Lu-ff-ing
Check more misspelled words of Luffing to spell it correct.