The future perfect continuous is not used a lot in everyday English usage. However, it does come up in when your EFL students get more advanced and if you plan to teach English overseas it is important to have an understanding of the less frequently used tenses. As the future perfect continuous is not often used it can be a struggle to think up teaching ideas for it. The trainer in this video shows us one idea that can be used for the tense. For this activity the students conduct a survey to find out how long someone will have been doing something by a certain point in the future. For example:
Student A: How long will you have been learning English by the end of next month?
Student B: I will have been learning English for three years.
To find a course that will help you to teach English overseas check out the link above. There you will find a number of courses tailored to meet the needs of most people wanting to become English teachers.