FORM
person + will + have + verb (III column or -ed ending) + the rest of the sentence
• We will have left before they arrive.
• She will have learned how to tie her shoes by the time you come back from USA.
USE
1. Completed Action Before Something in the Future
The Future Perfect expresses the idea that something will occur before another action in the future. It can also show that something will happen before a specific time in the future.
• By next month, I will have finished my essay.
• By the time I make a deal, you will have robbed the bank.
2. Duration Before Something in the Future (non-Continuous Verbs)
With Non-Continuous Verbs and some non-continuous uses of Mixed Verbs, we use the Future Perfect to show that something will continue up until another action in the future.
• By the time he comes here, they will have already worked in this company for 5 years.
• By next month, Tom is going to have had my TV for a year.
3. Active/Passive
• Before my mother arrives, I will have finished my essay. ACTIVE
• My essay will have been finished before my mother arrives. PASSIVE
More exercises on the Future Perfect can be found in our forum and on the www.aling.pl!

