Grammar Unit Be going to

BE GOING TO: INTENTIONS

• We use be going to to talk about things we intend to do in the future.

          I´m going to visit my grandfather at the weekend.

          Marco is going to buy some new jeans tomorrow.

• The form is the present simple of be + going to + base form of the verb.

          I´m going to stay at home on Sunday.

          She isn´t going to spend much money.

• The questions is formed with the present simple of be + subject + going to + base form of the verb.

          Are you going to watch the film tonight? Yes, I am/No, I´m not.

          Is Paul going to meet you after school? Yes, he is/No, he isn´t.

BE GOING TO: PREDICTIONS

• We can also use be going to to make predictions based on things we know or can see.

          Look at the clouds. It´s going to rain soon.

          Silvana didn´t ring her parents. They´re going to be angry with her.

MUST/MUSTN´T

• Must is similar to have to. We use it to say that it is necessary or very important to do something.

          You must come home before 11 o´clock.

           I´m late – I must go!.

• We use mustn´t to say that it is necessary or very important not to do something.

          You mustn´t be late.

           I mustn´t forget to go to the bank.

          Mustn´t has a different meaning from don´t/doesn´t have to.

          You don´t have to leave now.

          You mustn´t leave now.

• Must is a modal, like will. We use must/mustn´t + base form of the verb, not to infinitive. The form of the verb is the same for all subjects and we don´t use any form of do in the negative.

          I must get up early tomorrow.

          I mustn´t miss the train.