Three types of conditional sentences.

1. Conditional sentences
If

2. Conditional sentences
Condition
Clause
Result

3. Conditional
• If-clause
•
Main clause
If-clause
comma(,)
If you learn harder, you will
succeed.
•
Main clause
comma(,)

4. ???

5. 1. The first conditional: Future Possible
2. The second conditional: Present Unreal
3. The third conditional: Past Unreal

6. 1.The first conditional: Future Possible
1.1 >>>
If Present Sim, Present Sim.
1.2 >>>
1.3 >>>
If Present Sim, Future Sim.
If Present Sim, Imperative.
Future Possible

7. 1.1 >>> If Present Sim, Present Sim.
If + S + V1(s, es) + _____ , S + V1(s, es) + _____.
If-clause at the beginning:
- If ice is heated, it melts.
- If we heat water, it boils.
If-clause at the end:
- Metal expands if we heat it.
- I often go to a department store if I have
a day off from work.

8. 1.2 >>> If Present Sim, Future Sim.
If + S + V1(s, es) + ____ , S + will + V infinitive + ____.
If-clause at the beginning:
- If he gets a job, he will buy a new car.
If-clause at the end:
- I will go to Paris if I have time.
will
can, may, must, ought to
- If she borrows your money, you ought to lend it to her.
- You may see him if you go with me this night.

9. 1.3 >>> If Present Sim, Imperative.
If + S + V1(s, es) + _____ , V infinitive + _____.
Main clause
If-clause at the beginning:
- If you hear anything, keep quiet.
- If he comes back, call me please.
If-clause at the end:
- Please buy me some native clothes if you go to
Chiang Mai.
- Pick me up if you go to downtown.

10. 2.The second conditional: Present Unreal
2. >>> If Past Sim, Future in the past

Future
Future in the past
S + will + V infinitive
+ ____.
Future in the past
would, could, should, might
will

11. 2. >>> If Past Sim, Future in the past
If + S + V2 + ____ , S + would + V infinitive + ____.
could
should
might
If-clause at the beginning:
- If dogs had wings, they would be able to fly.
If-clause at the end:
- I would check your health if I were a doctor.
I were
I was
were

12. 3.The third conditional: Past Unreal
3. >>> If Past Perfect, Future Perfect in the past

the past
Future Perfect in
Future Perfect
S + will + have + V3 + ____.
Future Perfect in the past
will
would, could, should, might

13. 3. >>> If Past Perfect, Future Perfect in the past
If + S + had + V3 + ___, S + would + have + V3 + ___.
could
should
might
If-clause at the beginning:
- If we had played a little better, we could have won
the game.
If-clause at the end:
- You wouldn’t have had an accident if you had driven
more carefully.

14. 1. First conditional:
If I have enough money, I will go to Japan.
2. Second conditional:
If I had enough money, I would go to Japan.
3. Third conditional:
If I had had enough money, I would have gone to
Japan.

15. !!!
Unless
Unless
If…….not =
If there is no water, the plants will die.
>> Unless there is water, the plants will die.
Tim will miss the bus if he doesn’t get up early.
>>Tim will miss the bus unless he gets up early.

16. Remember!!!

was
Unless
were
If …. not
Future in the past
would, could, should, might
will

17. • http://grammar.ccc.commnet.edu/grammar/c
onditional2.htm
• http://www.englischhilfen.de/en/grammar/if.htm
• http://andthey.blogspot.com/2012/10/conditionalsentences-english-task-part.html

18. •
FB:
Line:
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