Tenses Questions
The present perfect continuous tense is used to describe an action that started in the past, is still ongoing in the present, and is expected to continue in the future. It emphasizes the duration or the process of the action. For example, "I have been studying for three hours."
On the other hand, the present perfect tense is used to describe an action that happened at an unspecified time in the past and has a connection to the present. It focuses on the result or the completion of the action. For example, "I have studied for three hours."
In summary, the present perfect continuous tense emphasizes the ongoing nature of an action, while the present perfect tense emphasizes the result or completion of an action.