Pronunciation: [wɪðɡˈə͡ʊ] (IPA)
Correct spelling for the English word "withgo" is [wɪðɡˈə͡ʊ], [wɪðɡˈəʊ], [w_ɪ_ð_ɡ_ˈəʊ] (IPA phonetic alphabet).