The spelling of the word "Beyren" can be explained using the International Phonetic Alphabet (IPA) phonetic transcription. The first syllable "Bey-" is pronounced as /beɪ/, with the "eɪ" sound representing a long vowel. The second syllable "-ren" is pronounced as /rɛn/, with the "ɛ" sound representing a short vowel. Therefore, the correct spelling of this word includes a long "e" sound in the first syllable and a short "e" sound in the second syllable.