Temas Variados

| MUST NOT, MUSTN'T (PROHIBITION)We use must not to say that something is not permitted or allowed, for example: * Passengers must not talk to the driver.Structure of Must notMustis an auxiliary verb. It is followed by a main verb. The structure for must not is:subject + must not + main verbThe main verb is the base verb (infinitive without "to").Must not isoften contracted to mustn't.Use of Must notMust not expresses prohibition - something that is not permitted, not allowed. The prohibition can be subjective (the speaker's opinion) orobjective (a real law or rule). Look at these examples: * I mustn't eat so much sugar. (subjective) * You mustn't watch so much television. (subjective) * Students must not leavebicycles here. (objective) * Policemen must not drink on duty. (objective)We can use must not to talk about the present or the future: * Visitors must not smoke. (present) * Imustn't forget Tara's birthday. (future)We cannot use must not to talk about the past. We use other structures to talk about the past, for example: * We were not allowed to enter. * Icouldn't park outside the shop. |

MUST ( OBLIGATION)
We use “must” for the necessities that the speaker decides himself. Must is used only in present and future.
* I cough a lotin the evenings. I must stop smoking. ( I decided myself )
* As Meral has a very important exam tomorrow morning she must go to bed early.
* This client is a very serious manso we must prepare everything very carefully.
* I must save money to buy that house.
Past form of “must” is “had to”.
* I had to get a taxi for work yesterday because I waslate.
* In order to get to the office, I had to take three buses last year.
* She had to work last Saturday because she couldn’t finish the reports.
NAME: BELEN BASANTES