The spelling of "most swallow" might seem confusing at first glance, but it can be explained with the IPA phonetic transcription. The word "most" is pronounced /moʊst/, while "swallow" is pronounced /ˈswɑːloʊ/. The similarity in sound between the /oʊ/ in "most" and the /ɑː/ in "swallow" causes some confusion in spelling. However, it's important to remember that English spelling often doesn't follow strict phonetic rules. Nonetheless, with practice, the spelling of "most swallow" will become second nature.