Tarifed or Tariffed: How To spell?

The word Tarifed is misspelled against Tariffed, which is past tense of "Tariff"

Tariffed has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Tari & ed which should not be misspelled with single 'F'
Wrong Spelling:  Tari-f-ed 
Correct Spelling:  Tari-ff-ed 
Find more wrongly spelled words of Tariffed to spell it well.

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