Expressions with a future meaning

be TO + INFINITIVE

This form refers to an obligation to do something at a time later than now. It is similar to 'must', but there is a suggestion that something has been arranged or organized for us. It is not normally used in spoken English, but might be found in spy stories,
e.g. "You are to leave this room at once, and you are to travel by train to London. In London you are to pick up your ticket from Mr Smith, and you are to fly to your destination alone. When you arrive, you are to meet our agent, Mr X, who will give you further information. You are to destroy this message now."

To talk about official, formal arrangements, e.g in a radio commentary.
“ The prince is to meet everyone concerned with the charity.

2. be due to+ the infinitive (expect to happen at a particular time)
The ceremony is due to start at 9 a.m.

3. For events that will happen very soon.
Be about to + infinitive e.g. She looks as if she’s (just) about to burst into tears.
Be on the point/verge of +-ing/noun The talks were on the point/verge of collapsing/collapse

4. to talk about probability
Be likely/unlikely to + infinitive/ expect (somebody/something) to+ infinitive
The country is likely to get poorer next year/We expect the country to get poorer

5. To talk about certainty
Be bound/sure to + infinitive Don’t lie to him. He’s bound/sure to find out.