Da B1 a C1 – Grammar Clinic – Future Perfect Simple & Continuous

Fortunately, there’s a simple way to remember the basic difference between these two tenses. The future perfect simple describes an action that will be finished at a particular moment in the future. The future perfect continuous describes the duration of an ongoing action in the future.

But it’s not that simple. There are some other differences. Like whether you are talking about quantity or time or the time phrases that you use, etc.