The correct spelling for the phrase "sate down on" should be "sat down on." The pronunciation of "sat" is /sæt/ with a short 'a' sound, while the verb form of "sate" is pronounced /seɪt/ with a long 'a' sound. Many people may misuse the word due to similar sounding words in the English language. It is important to use the correct spelling and pronunciation when communicating effectively.