Future obligation
Form
When we write about future obligations, we can use a formal pattern composed of two elements
the verb to be in the present tense conjugated to match the subject + the infinitive of the main verb
To travel, as a future obligation
| Affirmative | Negative | Interrogative | Negative interrogative |
|---|---|---|---|
| I am to travel. | I am not to travel. | Am I to travel? | Am I not to travel? |
| You are to travel. | You are not to travel. | Are you to travel? | Aren't you to travel? |
| He is to travel. | He is not to travel. | Is he to travel? | Isn't he to travel? |
| It is to travel. | It is not to travel. | Is it to travel? | Isn't it to travel? |
| We are to travel. | We are not to travel. | Are we to travel? | Aren't we to travel? |
| They are to travel. | They are not to travel. | Are they to travel? | Aren't they to travel? |
Function
In written English, we can use this pattern to refer to an obligation or requirement that we do something at a time later than now. It is similar in meaning to must, but there is a suggestion that something has been arranged or organised for us. It is not normally used in spoken English.
Examples
- 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.