[Ramadan]; Who do some people spell Muhammad's [SAW] ....?

it's an arabic name. english is a language where many combinations of letters can result in the same \ similar sounds and there are many arabic sounds english letters cannot recreate.... this is not just limited to arabic and english but holds true for many languages..... as such, when names or other words are written in languages other than their native language, there may be many varying spellings... all equally acceptable