The word Sufered is misspelled against Suffered, which is past tense of "Suffer"
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Suffered has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Su & ered which should not be misspelled with single 'F'
Wrong Spelling: Su-f-ered
Correct Spelling: Su-ff-ered
Check more misspelled words of Suffered to spell it correct.