The proper spelling of the word "beisan" can be a bit confusing due to the unique phonetic sounds of this word. According to the International Phonetic Alphabet (IPA), the correct spelling is /beɪsæn/. This means that the first two letters "be" are pronounced as "bay" and the following "i" is silent. The "s" in the middle is pronounced as "s" and the last two letters "an" are pronounced as "an". Overall, the IPA phonetic transcription helps to clarify the correct spelling of "beisan".