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Murder Mystery Scene 1 - Language Focus

Rob and Stephen look at how ‘must’, ‘could’ and ‘perhaps’ can be used to speak about certainty and possibility.

Watch the video. Then go to the Tasks and do the activities.


Language level

Intermediate: B1


I have a question on task2. All the first actions are in past simple form then why I am using "might have been" instead of "might had been" in the second action ?


Hello tondralok,

It's great that you've noticed this! In general, modal verbs + have + past participle refer to the past – these are not present perfect forms. Modal verbs + *had + been is a form that is not used at any time in English.

Best wishes,
The LearnEnglish Team

Hello Sir,
I just wanted to point out a typing error. In the sentence 5 of Task 3, the spelling of 'This' is wrong.
Thanks for this article, by the way!

Hello adtyagrwl3,

Thank you for pointing this out. We'll correct this as soon as possible.

Best wishes,


The LearnEnglish Team


I honestly confused. I have tried out all possible answers to the questions above, but I failed all. where Can I get clues? I do not know what else to write as the answers to task 2.

Hello Chocolar,

You can see the correct answers by clicking on Finish instead of Check Answers.

All the best,
The LearnEnglish Team

Hi Kirk,
I appreciate your timely respond.
thank you.

I have a question. About Q.7 in Task 3 why is the answer 'could be looking'? I thought it was 'could look'.

Hello Haruyo,

The simple version of this sentence is 'We are looking for a tea drinker!' When 'could' is used to express the idea of possibility, the verb auxiliary verb 'are' is changed into 'be' since modal verbs are followed by the bare infinitive.

'We are looking for' or 'We could be looking for' are accurate (and 'We look for' or 'We could look for' are not) because Ashley is speaking about the search for the murderer that she and Stephen are currently carrying out. In other words, she uses the present continuous to express the idea of an action in progress.

All the best,
The LearnEnglish Team

Thanks a lot!!!!