The correct spelling of the word is "most pertinent", not "wast pertinent". The IPA transcription for "most" is /moʊst/ and for "pertinent" is /ˈpɜːrtɪnənt/. "Wast" is not a valid spelling for "most", as it is an archaic form of the word "was". The correct spelling is important for clear communication and avoiding confusion. It is important to pay attention to accurate spelling in written communication, in order to convey information effectively.