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Unit

51 work/working go/going do/doing

A work/go/be etc. (infinitive)
will/can/must etc. + infinitive:

will Anna will be here soon. → Units 27–28
shall Shall I open the window?
might I might phone you later. → Unit 29
may May I sit here?
can I can’t meet you tomorrow. → Unit 30

could Could you pass the salt, please?
must It’s late. I must go now. → Unit 31
should You shouldn’t work so hard. → Unit 32

would Would you like some coffee? → Unit 34

do/does/did + infinitive:

do/does Do you work? → Units 6–7
(present simple) They don’t work very hard.
Helen doesn’t know many people.
How much does it cost?

did What time did the train leave? → Unit 12

(past simple) We didn’t sleep well.

B to work / to go / to be etc. (to + infinitive)

(I’m) going to … I’m going to play tennis tomorrow. → Unit 26
What are you going to do?

(I) have to … I have to go now. → Unit 33

Everybody has to eat.

(I) want to … Do you want to go out? → Unit 52
They don’t want to come with us.

(I) would like to … I’d like to talk to you. → Unit 34
Would you like to go out?

(I) used to … Dave used to work in a factory. → Unit 36

C working/going/playing etc.

am/is/are + -ing Please be quiet. I’m working. → Units 3–4, Unit 8, Unit 25

(present continuous) Tom isn’t working today.
What time are you going out?

was/were + -ing It was raining, so we didn’t go out. → Units 13–14
(past continuous) What were you doing at 11.30 yesterday?

verbs + to … and -ing (I want to do / I enjoy doing) ➜ Unit 52 go and -ing ➜ Unit 55