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 may continue into the future. It is formed by using "have/has been" + present participle (-ing form of the verb).
Example: "I have been studying for three hours."
On the other hand, the future simple tense is used to describe an action that will happen in the future. It is formed by using "will" + base form of the verb.
Example: "I will study tomorrow."
In summary, the main difference between the present perfect continuous and future simple tenses is that the present perfect continuous focuses on an ongoing action that started in the past and continues into the present, while the future simple tense focuses on an action that will happen in the future.