The spelling of the word "Bernett" can be a bit confusing based on its pronunciation. Using the International Phonetic Alphabet (IPA) transcription, we can break it down: /bərˈnɛt/. The first syllable is pronounced with a schwa sound, followed by a stressed "n" sound. The final syllable is pronounced with a short "e" sound and a "t" sound. Therefore, the correct spelling of the word is "Bernett," with two "t's" at the end to reflect the final sound.