The word "dueted" is spelled with two "e's" as a result of the combination of the base word "duet" and the suffix "-ed." The word is pronounced as /du-ɛt-ɪd/ in IPA phonetic transcription. The first syllable includes the sound of "du" with a long "u" sound, followed by the syllable "-et" pronounced with a short "e" sound. The "-ed" suffix adds an extra syllable with the sound of "ɪd," making the final pronunciation "du-ɛt-ɪd," reflecting the word's past-tense use.