Conditional sentences

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Conditional sentences
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When do we use conditional sentences?
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• We can use conditional sentences to talk about
  facts.
• Conditional sentences have two parts
• ? an if-clause, and
• ? a main clause.

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When we use conditional sentences to talk about
facts, we use the simple present in both the
if-clause and the main clause.
We can change the order of the clauses in a
conditional sentence.
Do you always put a comma between the two clauses?
You put a comma if the conditional sentence
starts with the if-clause.
You dont put a comma if the conditional sentence
starts with the main clause.
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Note
In this type of conditional sentence, we can use
when instead of if.
When water freezes, it turns to ice.
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What are the four types of conditional sentences?
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simple present tense If it rains,
simple future tense we will stay at home.
? to talk about what will possibly happen now or
in the future
simple present tense If you dont water a plant,
simple present tense it dies.
? to talk about facts
would bare infinitive I would be more careful.
? to talk about imaginary situations
simple past tense If I were you,
? to talk about something which could have
happened in the past but did not
past perfect tense If I had taken a taxi,
would have past participle I would have
arrived on time.
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Practice
Complete the article by forming conditional
sentences.
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The giraffe is the tallest animal in the world
a male giraffe can grow up to six metres
tall. Here are some other interesting facts
about this animal from Africa.
stand / a mother giraffe / up birth / give / she
A mother giraffe stands up
when she gives birth.
,
born / a baby giraffe / be fall / it / nearly
two metres
When a baby giraffe is born
it falls nearly two metres.
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You study a giraffes spots
if you want to find out which
a giraffes spots / you / study to find out /
you / which part of Africa / want / its from
if you want to find out which part of
Africa its from.
part of Africa its from.
If a giraffe has star-shaped spots
it definitely comes from
,
have / a giraffe / star-shaped spots from /
definitely / it / South Africa / come
South Africa.
stand / usually / giraffes sleep / they
Giraffes usually stand
when they sleep.
when they sleep.
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The end