Future Perfect Continuous

We use future perfect continuous to talk about a continuous action that will be completed at some point in the future and to show the relation of cause and effect.

We can use it in its different forms:

• affirmative: we start with the subject followed by will have been and a verb that ends with -ing;
• negative: we start with the subject followed by will not have been and a verb that ends with -ing;
• interrogative: we start with will followed by the subject followed by have been and the a verb that ends with -ing (the sentence ends with a question mark).

We can use time expressions such as: for 5 years, since Saturday… 

For example:

— affirmative: “I will have been working with you for 3 years next week.” 
— negative: “I will not have been working with you for 3 years next week.”
— interrogative: “Will I have been working with you for 3 years next week?”
We use the future perfect continuous because the action of working for 3 years will (or will not) be completed in the future, meaning next week.
♦ “I will be working next week.” = We use the future continuous because we assume that this event will be taking place in the future.
♦ “I will work next week.” = We use the future simple because we express a future intention.

Let’s revise this content within the {Form} section. Take a look at the {Example} section that shows its use within a context.