The future continuous is made up of two elements: the simple future of the verb 'to be' + the present participle (base+ing)
Subject simple future, 'to be' base+ing
You will be watching
Affirmative: I will be asking
Negative: She won't be leaving
Interrogative: Will they be retiring?
The future continuous refers to an unfinished action or event that will be in progress at a time later than now. It is used:
- To project ourselves into the future and see something happening: This time next week I will be sun-bathing in Bali.
- To refer to actions/events that will happen in the normal course of events: I'll be seeing Jim at the conference next week.
- In the interrogative form, especially with 'you', to distinguish between a simple request for information and an invitation: Will you be coming to the party tonight? (= request for information) Will you come to the party? (= invitation)
- To predict or guess about someone's actions or feelings, now or in the future: You'll be feeling tired after that long walk, I expect.
- Events in progress in the future: This time next week you will be working in your new job. At four thirty on Tuesday afternoon I will be signing the contract.
- Events/actions in normal course of events: I'll be going into town this afternoon, is there anything you want from the shops? I'll be seeing Jane this evening - I'll give her the message.
- Asking for information: Will you be bringing your friend to the pub tonight? Will Jim be coming with us?
- Predicting or guessing: You'll be feeling thirsty after working in the sun. He'll be coming to the meeting, I expect.