Expressing prohibition

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To express prohibition the following expressions are used.

To express prohibition you can use:

  • It is prohibited to 
  • You aren’t allowed to 
  • You mustn’t
  • You aren’t permitted to 
  • It is forbidden to …

Examples

  • Parking is strictly prohibitedbetween these gates.
  • Students aren’t allowed to come too late to school.
  • Drivers mustn’tpark their cars here.
  • It is forbiddento walk on grass.
  • Smoking isn’t permittedin hospitals.
  • People aren’t permittedto throw rubbish here.

Dialogue

Notice how prohibition is expressed in this dialogue

The security agent: Hey, you. What are you doing here? You aren’t allowed to enter this building.
Mr O’Brian: Sorry, but I have an appointment with Dr Leila O’Biran. She’s my daughter.
The security agent: Show me your ID card please.
Mr O’Brian: Here you are, sir.
The security agent: Well…That sounds OK. Dr Leila O’Brian is in the 3rd floor. You can take the lift sir.