Will + be + infinitive + ing
I will be watching
When to use::
- to express doing something in the future, i.e. I will be in the middle of an action in the future. We often use time expressions for this:
Don't call me after 10. I will be working.
The baby will be sleeping when you come home. Try to be quiet.
- to make guesses about the future (usually if you think something will happen because it normally happens):
I expect she will be coming to the party (because she always does).
- to ask politely about some future events (especially if you need something from another person):
Will you be using your laptop tonight? (Maybe you want to borrow the laptop).