This document discusses the different types of conditional sentences in English: zero conditional, first conditional, second conditional, and third conditional. It provides examples for each type of conditional and explains when they are used - the zero conditional is used for scientific facts, the first conditional discusses future possibilities, the second conditional talks about unrealistic situations, and the third conditional refers to past events that did not occur.

1. Use IF CLAUSE RESULT CLAUSE TIME
ZERO
CONDITIONAL
It is used for
scientific
facts or
statements
that are
always true.
If something happens…
If you don’t drink water,…
If you stand in the rain,…
If I have time,…
Result is true.
you die.
you get wet.
I watch TV after lunch.
ANY
TIME
1st
CONDITIONAL
It is used to
talk about
the
possibility of
something
happening in
the future.
Ifsomething happens…
If John invites me,…
If it rains,…
Result will be true.
I will go to the party.
We will stay at home.
FUTURE
2nd
CONDITIONAL
It is used to
talk about
dream
situations or
situations
which are
often unreal.
If something happened…
If I won the lottery,…
If I had a sister,…
Result would be true.
I would buy a yacht.
I would look after her.
FUTURE
3rd
CONDITIONAL
It is used to
talk about
past events
which did
NOT happen.
If something had happened…
If I had passed my exam,…
If I had studied harder,…
Result would have been true.
my parents would have been happy.
I would have passed the exam.
PAST