input: from typing import List
  
  def extract_verbs(sentence: str) -> List[str]:
      """Extracts and returns a list of verbs from the given sentence.
      Requires the nltk library to be installed and the necessary nltk resources to be downloaded.
      
      >>> extract_verbs("The cat jumped over the moon.")
      ['jumped']
      >>> extract_verbs("The man is running quickly.")
      ['is', 'running']
      """
output:     from nltk import pos_tag, word_tokenize
  
      words = word_tokenize(sentence)
      tagged_words = pos_tag(words)
      verbs = [word for word, pos in tagged_words if pos.startswith('VB')]
      return verbs