The present perfect tense is used to describe actions that began in the past and continue up to the present moment, while the present perfect continuous tense is used to describe actions that began in the past, have continued up to the present moment, and are still continuing.

Here are some examples that illustrate the difference between the present perfect and present perfect continuous tenses:

1. Present perfect: “I have eaten breakfast already.” (action that began in the past and continues up to the present moment)
   
   Present perfect continuous: “I have been eating breakfast for an hour.” (action that began in the past, has continued up to the present moment, and is still continuing)
   
2. Present perfect: “She has studied for her exams every day this week.” (action that began in the past and continues up to the present moment)
   
   Present perfect continuous: “She has been studying for her exams every day this week.” (action that began in the past, has continued up to the present moment, and is still continuing)
   
3. Present perfect: “They have played soccer in the park every day this week.” (action that began in the past and continues up to the present moment)
   
   Present perfect continuous: “They have been playing soccer in the park every day this week.” (action that began in the past, has continued up to the present moment, and is still continuing)

As you can see, the present perfect tense is used to describe actions that began in the past and continue up to the present moment, while the present perfect continuous tense is used to describe actions that began in the past, have continued up to the present moment, and are still continuing. It is important to use these tenses correctly and appropriately in order to convey the intended meaning clearly and accurately.