The document outlines three types of conditionals in English: Type I (likely) uses present tense to indicate possible future scenarios, Type II (unlikely) uses past tense for improbable current scenarios, and Type III (impossible) uses past perfect for impossible past situations. It discusses the structure for each type and provides examples, emphasizing that inversion can occur with specific auxiliary verbs. Additionally, the document includes exercises to practice correct verb forms in conditional sentences.

1. CONDITIONALS
Ada 3 macam conditionals :
1. CONDITIONALS I (Likely type)
Dipakai untuk menyatakan pengandaian yang mungkin terjadi bila yang disebut dalam if
clause dipenuhi :
Rumus :
a. If _____________ , will verb I
Present
Ex. – If I pass the exam, I will treat you.
- John will not call me if he has a party.
- The students will not be quiet if the teacher is not in the room.
Pengandaian ini ditulis dalam bentuk present, tetapi menunjuk ke peristiwa future.
b. If _____________ , command.
Present
Ex. – if Jane comes in, tell me at once.
- Don’t leave him alone if he is ill.
2. CONDITIONALS II (Unlikely type)
Dipakai untuk menyatakan pengandaian yang tidak mungkin terjadi karena yang disebut
dalam if clause tidak sesuai dengan keadaan sekarang.
Rumus :
If _____________ , would verb I
Past
Ex. – If I had the money, I would pay your bill.
- Jane would not open the box if she knew the content.
- If I were you, I would not accept the bribe.
Catatan : to be untuk conditional II selalu were.
Pengandaian ini ditulis dalam bentuk past, tetapi menunjuk ke peristiwa present.
3. CONDITIONALS III (Impossible type)
Dipakai untuk menyatakan pengandaian yang tidak mungkin terjadi karena yang disebut
dalam if clause tidak sesuai dengan keadaan lampau.

2. Rumus :
If _____________ , would have verb III
Past perfect
Ex. – If I had met you before, I would have told you.
- Jane would not have entered the room if he had known it.
- If the child had not been there, he would not have been hurt.
Pengandaian ini ditulis dalam bentuk past perfect, tetapi menunjuk ke peristiwa
past.
CONDITIONS : INVERSION
Kata if dapat dihilangkan dalam kalimat-kalimat pengandaian dengan cara membalik
susunan subyek dan kata kerja bantunya. Susunan ini disebut dengan inversion.
Inversion dapat dilakukan hanya dalam kalimat yang mengandung kata-kata : were,
had atau should.
Contoh :
- If you should meet jane, tell her to see me. (Likely type)
Should you meet Jane, tell her to see me.
*should = utk memperhalus bahasa
- If it were not for you, I would be late. (Unlikely type)
Were it not for you, I would be late.
- If you had told me, I would have come. (Impossible type)
Had you told me, I would have come.

3. EXCERCISES
Put the verbs in brackets into the correct forms.
1. We’ll have a long way to walk if we (run) out of petrol here.
2. If you shake that bottle of port, it (not be) fit to drink.
3. I’ll probably get lost unless he (come) with me.
4. You (not have) so many accidents if you drove more slowly.
5. If you (wear) a false beard, nobody would recognized you.
6. If you listen carefully to the tape, you (hear) the sound of a child crying.
7. If I (see) a tiger, I would run for my life.
8. If he (spray) insecticide on the plant, all the ants would die.
9. We (play) football on the field if it doesn’t rain.
10. You will strain yourself if you (try) to lift that box all by yourself.
11. I (show) you how to operate that machine if you were willing to learn.
12. I (be) your mother, I would not let you go.
13. Many people (be injured) if the stage collapses.
14. If he (pull) out the plug while the current was on, he would get an electric shock.
15. Those trees (bear) fruit earlier if you planted them from grafts.
16. You (buy) the shares if the price had been lower?
17. The man (not sell) you that medicine unless you have prescription from your doctor.
18. If there (not be) so much publicity about the show, it would not have been so successful.
19. If you (drive) carefully round the bend, there wouldn’t have been an accident.
20. She (wade) across the river if the bridge had collapsed?