Elementary Unit 11
Elementary · Grammar Reference
Unit 11 — going to · Infinitive of purpose
going to · going to vs Present Continuous · infinitive of purpose
11.1   going to

1 Going to expresses a person's plans and intentions.

She's going to be a ballet dancer when she grows up.We're going to stay in a villa in France this summer.

2 We also use going to when we can see now that something is sure to happen in the future.

Look at those clouds. It's going to rain. (= I'm sure.)
Positive and negative
SubjectTo beVerb
I'm
He / She / It's(not) going tohave a break. / stay at home. / be late.
We / You / They're
Questions
To beSubjectVerb
amI
ishe / she / itgoing tohave a break? / stay at home?
arewe / you / they
11.2   going to and the Present Continuous

1 The Present Continuous can also describe a future intention.

I'm playing tennis this afternoon.Jane's seeing her boyfriend tonight.

2 Often there is little difference between going to and the Present Continuous to refer to future time.

I'm seeing Peter tonight.I'm going to see Peter tonight.

3 With the verbs to go and to come, we usually use the Present Continuous.

We're going to Paris next week.Joe and Tim are coming for lunch tomorrow.
📌 Note
NOT  We're going to go…
NOT  We're going to come…
11.3   Infinitive of purpose

The infinitive can express why a person does something.

I'm saving my money to buy a CD player. (= I want to buy a CD player.)We're going to Paris to have a holiday. (= We want to have a holiday.)
📌 Note
NOT  I'm saving my money for buy a CD player.
NOT  I'm saving my money for to buy a CD player.