What is the difference between the present perfect and the present perfect continuous?

The present perfect tense and the present perfect continuous can both be used to refer to the present consequences of a past action or situation:

  • The present perfect can be used to refer to a past action that may continue in the present (e.g., “I have lived here for six months”).
  • The present perfect continuous refers to actions or situations that began in the past and are definitely continuing in the present (e.g., “I have been arguing with him constantly”).