input: from typing import List
  
  def expand_list(list: List) -> List:
      """ Analyze and potentially modify the list by expanding it during iteration.
      >>> expand_list([1, 2, 3])
      [1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3]
      >>> expand_list(['a', 'b'])
      ['a', 'b', 'a', 'b', 'a', 'b', 'a', 'b']
      """
output:     result = []
      for item in list:
          result.append(item)
          if len(result) < 8:
              result.extend(list)
      return result[:8]