If somebody asks you something like the samples below…

• What will you have achieved by the time you reach forty?
• How many books will you have read by Christmas?
• How many English class assignments will I have given you by the end of the term ? 🙁

…they are using the future perfect and we’d usually answer this in the following way

• By the time I reach forty I will have set up my own company.
• By Christmas I will have read three books.
• By the end of the term my teacher will have given us tons of English assignments because she is very picky.

• That is: time expression + subject + will + have + past participle

Here’s a fun way to do some language drills.

HOW TO PLAY

• Pick a partner or ask somebody randomly.
• Turn the wheel. Say for example you get How many showers (have).
• Turn the second wheel for time expressions. Say for example you get  ‘in one year’
• Make a question with these expressions. Example: How many showers will you have had in a year ?
• Your partner should answer your question.
• Example: In a year I will have had about ….. showers. (if the partners says he/she has a very low number of showers,  choose another person quickly).