Session 2

In this session we look at the unit’s new language in more detail, and learn the rules for how to use must and have to.

Sessions in this unit

Session 2 score

0 / 13

  • 0 / 7
    Activity 1
  • 0 / 0
    Activity 2
  • 0 / 6
    Activity 3
  • 0 / 0
    Activity 4
  • 0 / 0
    Activity 5

Silent letters

Did you hear how Mr Christmas said the word mustn't? One of the letters in that word is silent – do you know which one? Watch this video to find out and to practise your pronunciation. Then try the pronunciation exercises.

Watch the video

Show transcript Hide transcript

Hello! I’m Finn, with another pronunciation tip.

Today we're looking at 'must' and 'mustn't'.

First, mustn't.

You'll notice that the middle 't' is silent.

Mustn't, mustn't. Not musTn't, but mustn’t

Now, 'must'. When you say the word on its own, it has a 't' at the end. It's pronounced 'must'.

But when it's followed by a word which starts with a consonant, that sound disappears. Listen to this.

I mus(t) go

You mus(t) come

'Muss go'

'Muss come'

And one last tip, when it's followed by a word which starts with a vowel like 'open', listen to what happens.

I must open

You must arrive

The 't' is there, but it joins on to the word afterwards.

'Mus topen'

'Mus tarrive'

There you go. That's the pronunciation tip for today. Bye.

To do

Read these sentences. Practise saying them by yourself.

  1. You really must pay for that!
  2. You mustn't worry.
  3. You must arrive before 6am.
  4. You must offer me a higher salary!
  5. Mustn’t grumble.


Great! We must make sure you've learned all the grammar. Here’s 6 Minute Grammar.

Session Grammar

  • If you must do something, it is necessary for you to do it, but this is often your opinion or a rule that you have made yourself.

    If you have to do something, it is necessary for you to do it. It’s a law, an obligation or a fact.

    If you don’t have to do something, it isn’t necessary to do it, but you can if you want.

    If you mustn’t do something, it means ‘don’t do it’. It is necessary not to do it.

Session Vocabulary

  • expires
    officially finishes, usually after a particular date

    mustn’t grumble
    can’t complain; not bad (said after someone asks 'How are you?')