Pronunciation: [ˈɑːdjuːəsliɪŋ] (IPA)
Correct spelling for the English word "arduouslying" is [ˈɑːdjuːəsliɪŋ], [ˈɑːdjuːəsliɪŋ], [ˈɑː_d_j_uː_ə_s_l_i__ɪ_ŋ] (IPA phonetic alphabet).
Correct spelling for arduouslying