This document discusses the four types of conditional sentences in English: zero conditional, first conditional, second conditional, and third conditional. It provides the structure and examples of each type. The zero conditional is used for scientific facts using "if + present simple + complement". The first conditional expresses likelihood in the future using "if + present simple + future simple". The second conditional expresses unreal possibilities or dreams using "if + past simple + 'would' + infinitive". The third conditional expresses unreal past conditions using "if + past perfect + 'would have' + past participle".

1. Conditional Sentences
Farid Benitez
Catalina Chavarro
Johan Velandia
Juan Moreno
1000

2. Which is a conditional
• The use of conditional means that one action
depends on another. Conditionals are used to
talk about real or unreal situations. In general,
conditional phrases carry the word "if".

3. Keep in mind
• that there is no verb tense for the conditional
in English as it exists in Spanish. At the same
time, the auxiliary verb "would" is used to
form the conditional in English.
• There are four types of conditional phrases
and the use of one or the other reflects the
probability of the action.

4. Zero Conditional
• This type of conditional is used when the
condition and the result is always true, such as
scientific facts.
• its structure is:
• If + present simple + complement

5. First Conditional
• This type of conditional is used for the future
and in cases where it is very likely that the
condition will pass.
• its structure is:
• If + present simple + future simple

6. Second Conditional
• Type 2 is used to express an unreal possibility
in the present, such as a wish or a dream, or
for an action in the not-so-probable future.
• its structure is:
• If + past simple + “would” + infinitive

7. Third Conditional
• Unlike types 1 and 2, the third type of
conditional is used when we talk about a
condition in the past that has not happened.
• its structure is:
• If + past perfect + “would have” + past
participle

8. Examples
• If I do not recycle garbage every day, the world
does not get better.
• If Bill studies, he will pass the exam.
• If he won the lottery, he would help clean up
all the water in the world.
• If I had known then what I know now, I would
have done things differently.

9. thanks for your attention.