Pronunciation: [mˈə͡ʊst fəɡˈɛtɪv] (IPA)
Correct spelling for the English word "most forgetive" is [mˈə͡ʊst fəɡˈɛtɪv], [mˈəʊst fəɡˈɛtɪv], [m_ˈəʊ_s_t f_ə_ɡ_ˈɛ_t_ɪ_v] (IPA phonetic alphabet).