It appears that there is no clear answer to the spelling of "WHWN" in the English language as it does not correspond to any recognized word. However, if we were to transcribe this word phonetically, it would likely be pronounced as /wɛn/. This would suggest that the spelling should contain the letters "WEN" rather than "WHWN". Accurate spelling is important in conveying clear communication, particularly in written correspondence where there is no context to rely upon.