Guide to English grammar

I will/shall be revising all day for the exam.
2 We can also use will be doing for an action which is the result of a routine or
arrangement.
I'll be phoning my mother tonight. I always phone her on Fridays.
The Queen will be arriving in ten minutes' time.
The postman will be coming soon.
The site is to be sold, and so the cinema will be closing in November.
The phone call is the result of my regular routine. The Queen's arrival is part of her
schedule. The postman's visit is part of his normal working day.
Compare these sentences.
Decision: I think I'll have lunch in the canteen today.
Arrangement: I'm having lunch with Alex.
Routine: I'll be having lunch in the canteen as usual.
We can use will be doing to ask if someone's plans fit in with our wishes.
Will you be going past the post office this morning? ~ Yes, why? ~ Could you post
thisfor me please?
How long will you be using the tennis court? ~ We've booked it until three. You
can have it after that.
When will you be marking our test papers? ~ Next week, probably.
76 Be to
1 We use be to + base form for an official arrangement.
The Prime Minister is to visit Budapest.
The two leaders are to meet for talks on a number of issues.
This pattern is often used in news reports.
NOTE
Be is often left out in headlines.
Prime Minister to visit Budapest.
2 Be to can also express an order by a person in authority, e.g. a teacher or parent.
The headmaster says you are to come at once.
You're not to stay up late. No one is to leave this building.
This trolley is not to be removedfrom the station.
77 The present simple in a sub clause
1 We often use the present simple for future time in a clause with if, when, as, while,
before, after, until, by the time and as soon as. This happens when both clauses are
about the future.
If we meet at seven, we'll have plenty of time.
Mr Dudley is going to move to the seaside when he retires.
Let's wait until the rain stops.
By the time you get this letter, I'll be in Singapore.
Call me as soon as you have any news.
NOT Gall me as soon asyou'll have any news.
The same thing happens in relative clauses and noun clauses.
There will be a prizefor the person who scores the most points.
I'll see that the place is left tidy.

2 We also use the present continuous and present perfect instead of the forms

with will.

I'll think of you here when I'm lying on the beach next week.

Let's wait until the rain has stopped. NOT until the rain will have stopped.

3 If the main clause has a present-simple verb (e.g. I expect), then we cannot use

another present-simple verb for the future.

I expect the rain will stop soon.

I keep reminding myselfthat I'll be lying on the beach next week.

NOTE
After hope we can use either a present or a future form.

I hope you have/you'll have a nice time.