for文の処理：out of rangeのエラーの対処の仕方が分からない python morph [1][2]prefix morph =[['akuan', 'AKUAN', '1'], ['aku', 'AKUAN', '0'], ['alangkah', 'ALANGKAH', '0'], ['alang', 'ALANGKAH', '0'], ['alang', 'ALangkah', '1'], ['alangkah', 'ALangkah', '0']] prefix =[] for k in range(len(morph)): if morph[k][1] ==morph[k-1][1] and morph[k][2] != morph[k-1][2]: prefix.append([k-1][k]) >>>prefix [['akuan', 'AKUAN', '1'], ['aku', 'AKUAN', '0'], ['alang', 'ALangkah', '1'] ['alangkah', 'ALangkah', '0']] IndexError: list index out of range range(len(morph))

IndexError `k` 1 `prefix.append`


for k in range(1, len(morph)):



prefix.append(morph[k])


`morph[k-1]` append