How Do You Spell TAKING ONE UPON?
Pronunciation: [tˈe͡ɪkɪŋ wˈɒn əpˌɒn] (IPA) 
The phrase "taking one upon" is not a commonly used phrase in English. However, if we break it down phonetically using the International Phonetic Alphabet (IPA), we can see the spelling of each sound. "Taking" would be transcribed as /ˈteɪkɪŋ/, with the stress on the first syllable and the "a" sound pronounced like "ay". "One" would be transcribed as /wʌn/, with a short "u" sound. "Upon" would be /əˈpɒn/, with the stress on the second syllable and a short "o" sound.
