def METHOD_NAME(df, column_names):
    column_values = []
    for col_name_to_add in column_names:
        if col_name_to_add is not None:
            if col_name_to_add not in df.columns:
                raise NameError(f'"{col_name_to_add}" is not one of the columns in the given DataFrame: {df.columns}')
            column_values.append(df[col_name_to_add].values)
        else:
            column_values.append([None]*len(df))
    return column_values