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 into the future. It emphasizes the duration or continuity of the action. For example, "I have been studying for three hours."
On the other hand, the future perfect continuous tense is used to describe an action that will start in the future, will continue for a certain period of time, and will be ongoing until a specific point in the future. It emphasizes the duration or continuity of the action in the future. For example, "By this time next year, I will have been working at this company for five years."
In summary, the present perfect continuous tense focuses on an ongoing action that started in the past and continues into the present, while the future perfect continuous tense focuses on an ongoing action that will start in the future and continue until a specific point in the future.