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Donna Young: Spelling Rules Words With Ie or Ei
Rules and examples for correctly spelling words with ie or ei.
Grammarly
Grammarly Blog: Spelling Words With Ei and Ie
The page focuses on the rules and examples for spelling words with "ei" and "ie" including the "I Before E Except After C" rule and the "I before E, Except after C, unless it sounds like A, as in neighbor or weigh" rule. L.9-10.2c Spelling