Pronunciation: [mˈa͡ɪldənɪŋ] (IPA)
Correct spelling for the English word "mildening" is [mˈa͡ɪldənɪŋ], [mˈaɪldənɪŋ], [m_ˈaɪ_l_d_ə_n_ɪ_ŋ] (IPA phonetic alphabet).
Correct spelling for mildening