The word Dificulties is misspelled against Difficulties, which is plural of "Difficulty"
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Difficulties has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Di & iculties which should not be misspelled with single 'F'
Wrong Spelling: Di-f-iculties
Correct Spelling: Di-ff-iculties
Check more misspelled words of Difficulties to spell it correct.