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Unit
4 3 Aisn't, haven't, don't etc. (negatives)
W e use not (n't) in negative sentences:
p osit ive —> n egative
am am not ('m not) O I'm not tired.
is is not (isn't o r 's not) o It isn't (o r It's not) raining.
are are not (aren't o r 're not) o They aren't (o r They're not) here.
was was not (wasn't) o Julian wasn't hungry.
were were not (weren't) o The shops weren't open.
have have not (haven't) o I haven't finished m y w ork.
has has not (hasn't) o Sue hasn't got a car.
will will not (won't) o W e won't be here tom orrow.
can cannot (can't) o George can't drive.
could could not (couldn't) o I couldn't sleep last night.
m ust m ust not (m ustn't) o I m ustn't forget to phone Jane.
should should not (shouldn't) o You shouldn't w o rk so hard.
w ould w ould not (wouldn't) o I w ouldn't like to be an actor.
don't/ doesn't/ didn't
p resen t sim p le n egative l/ w e/ you/ they do not (don't)
he/ she/ it does not (doesn't) work/ live/ go etc.
p a st sim p le n egative l/ they/ he/ she etc. did not (didn't)
p ositive - > n egative
I w ant to go out. - » I don't w ant to go out.
They w ork hard. - » They don't w ork hard.
Lisa plays the guitar. - > Lisa doesn't play the guitar.
M y father likes his job. —> M y father doesn't like his job.
I got up early this m orning. - > I didn't get up early this m orning.
They w orked hard yesterday. - > They didn't w ork hard yesterday.
W e played tennis. —> W e didn't play tennis.
Em ily had dinner w ith us. - > Em ily didn't have d inner w ith us.
Don't
Look! —> Don't look!
W ait for me. —> Don't w ait for me.
Som etim es do is the main verb (don't do / doesn't do / didn't do):
Do som ething! - > Don't do anything!
Sue does a lot at weekends. —> Sue doesn't do m uch at weekends.
I did w hat you said. —> I didn't do w hat you said.
present simple (negative) -fr U n it 6 past simple (negative) ^ U n it 12
don't look / don't wait etc. 4 Unit 35 W hy isn't/ don't ...?-» Unit 44