The document summarizes the different types of conditional sentences in English: Zero conditional sentences describe general truths using the present tense. First conditional sentences describe possible events in the present or future using the future tense. Second conditional sentences describe unlikely or hypothetical present situations using the past tense. Third conditional sentences describe unlikely past situations using the past perfect tense. The document provides examples for each type of conditional sentence and exercises for students to practice forming conditional sentences.

1. THE SUMMARY OF THE CONDITIONAL SENTENCE (by Mr. Novian Paiman, S.Pd/SMA Xaverius 1 Palembang)
Meaning / Sebutan IF clausenya Tenses utk “klausa hasil” Tenses untuk “Klausa JIKA/IF” Examples/contoh
Zero Conditional (Type 0)
Function: Telling GENERAL TRUTH/FACTS
Simple Present (S + V1) If Simple Present (S + V1)
(a) Water boils if we heat it to 100• celcius.
(b) Human and animal drink if they are thirsty.
(c) We get pink if we mix red and white.
(d) Animals attack if they feel annoyed.
(e) Butter melts if we leave it under the sun.
Open Conditiona (Type 1): True in the
present/future
Function: Telling POSSIBILITIES
Simple Future (S + will/shall/can/etc + V1) If Simple Present (S + V1)
(f) Julia will send email to her parents every week if she has
enough time.
(g) We can arrive earlier at school if there isn’t heavy rain in the
morning.
(h) Teacher will punish students if they make a noise in classes.
Unreal Conditional/Untrue in the present
(Type 2)
Function: Telling REGRETFULL of PRESENT
DAYS
Future Past (S + would/could + V1) If simple past (S + V2)
(i) Henry would pay his school fee on time if his parents sent him
some money today.
(the fact: Henry doesn’t pay his school fee on time because his
parents don’t send him some money today)
(j) If we didn’t make our history homework, the teacher would
punish us.
(the fact: Because we make our history homework, the teacher
don’t punish us)
(k) We could buy anything easily if we were the president’s
children.
(the fact: Because we are not the president’s children, we
can’t but anything easily)
Unreal conditional/untrue in the past
(Type 3)
Function: Telling REGRETFULL of PAST
TIME
Future Perfect (S + would/could have + V3) If Past Perfect (S + had + v3)
(l) Andrew would have finished his project if the manager had
instructed him two days ago.
(the fact: Andrew didn’t finish his project because the manager
didn’t instruct him twom days ago)
(m) If some students hadn’t done the test well, they would have
got problem in their mid report.
(the fact: because some students did the test well so they
didn’t get problem in their mid report)
Note: untuk conditional type 2, jika dalam klausa if terdapat to be, maka semuanya harus memakai were
Examples:
• Maria would help you if she were not so busy (the fact: Maria doesn’t help you because she is so busy)
• I would not get any problem in memorizing if I were Albert Einstein (The fact: I am not Albert Einstein so I get trouble in memorizing)

2. CONDITIONAL SENTENCE PRACTICE:
PART 1 (Type 0 or type 1)
 Change the verbs below using the formula of the conditional sentence type 0 or type 1.
1. We (hurt)________________________our skin if we (pour)________________________ hot water on it.
2. Fish (die)______________________________if we (put)_____________________________them out of water.
3. we (sweat)____________________________________ if we (stand)__________________________ too long under the sun.
4. If a man (get) _________________________________sick, he (see)_____________________________a doctor.
5. If we (put)____________________________ to much sugar on our tea, it (taste)________________________________bitter.
6. A dog (attack)__________________________ ____ if you (try)_________________________to take its food when it is eating.
7. If we (step)______________________________on a cat's tail, it (run)_______________________________away from us .
8. A driver (be)____________________________in danger if he (wear, not)_____________________________ a seat belt.
9. We (safe)__________________________our head from serious damaged if we (wear)______________________________a good helmet.
10. If you (press)____________________ this switch on the video player, it (start)_____________________________
PART 2 . Give the facts!
1. If Clare arrived late again, the hockey trainer would be furious. ___________________________________________________________________________
2. You’d have been so sorry if you’d failed in the final exams. ___________________________________________________________________________
3. We wouldn’t have gone to the party if the weather hadn’t been good. ___________________________________________________________________________
4. They couldn’t recognize you if you wore a wig and dark glasses. ___________________________________________________________________________
5. If the bus were on time, I wouldn’t miss the football match. ___________________________________________________________________________
6. If you did your homework earlier, you could be free all. ___________________________________________________________________________
7. We’d have eaten out if there’d been no food at home. ___________________________________________________________________________
8. You wouldn’t find life much easier if you seldom smiled. ___________________________________________________________________________
9. If it had been so hot, we wouldn’t have gone for a swim. ___________________________________________________________________________
10. You could do your job better if you took more time over it. ___________________________________________________________________________
11. If she’d kept practicing, she‘d have got better in her speaking. _____________________________________________________________________________
12. I wouldn’t be so happy if I didn’t pass the exam easily. ___________________________________________________________________________
13. You’d have been really tired if you’d forced working so hard. ___________________________________________________________________________
14. Those men would have visited us if they had returned here soon. ___________________________________________________________________________
15. If Julio weren’t the manager’s son, he couldn’t treat us in the luxurious restaurant. ___________________________________________________________________________