Pronunciation: [kˈə͡ʊɪŋ] (IPA)
Correct spelling for the English word "koing" is [kˈə͡ʊɪŋ], [kˈəʊɪŋ], [k_ˈəʊ_ɪ_ŋ] (IPA phonetic alphabet).
Correct spelling for koing