Unit 31 - Have to and must

Question 1

What does “I have to do something” mean?

Answer 1

It is necessary to do it.

I’m obligated to do it.

Question 2

In which kind of sentences do we use « do/does/did?

Answer 2

we use do,does,dod in

• questions and
• negative sentences

Question 3

What is similar to must?

Answer 3

have to

Question 4

We use must or have to to express what?

Answer 4

we use must or have to to give our own opinion

example:
* to say what you think is necessary
* or to recommend someone to do something

Question 5

What do we use to say that someone is

* « obliged to do »

Answer 5

we use « have to »

Question 6

what is used in written rules and instructions?

Answer 6

must
example:
Applications for the job must be received by 18 May.

Question 7

for what do we NOT use must?

Answer 7

you cannot use must to talk about the past

example:
We didn’t have much time. We had to hurry.
not we must hurry

Question 8

are « mustn’t and don’t have to » similar?

Answer 8

mustn’t and don’t have to are completely different

Question 9

What can we use to replace « have to » ?

Answer 9

have got to

Question 10

What does « you mustn’t do something » means?

Answer 10

It is necessary that you not do it

Question 11

What does « you don’t have to do something » means?

Answer 11

you don’t need to do it ( but you can do it)