Conditional sentence one (If 1)
When we want to say that something is going to happen id a certain condition is fulfilled, we normally use a future simple tense in the main clause and a present tense( simple, continuous or perfect) in the if clause. We do not use a future tense after If. Verbs used in the results part of the sentence are will and shall.
Note: When you start with If , there must be a comma used.
- If I go home, I will wash my stockings.
- If daddy buys me a bike, I shall be very happy.
- I shall be pleased if you send me a gift.
- They will complete their work if they get time.
Complete the following sentences in any way you like.
- If I go home early, …………………………..
- If you complete your home in time, ………………………..
- If we get there on time, we ………………………..
- If she sees him today, she …………………………….
- if my father comes tomorrow, I ………………………
- They will come and see us if, ………………………..
- George will pass the examination if …………………….
- I will go tomorrow if …………………………….
- Musoke will be happy if ………………………….
- We shall stop the game if ……………………………………..
- Use of: Unless
Unless refers to…if…not or except if…..
If you are to use unless at the beginning of a sentence, the following rules are followed:
- If you have positive sentences in both the if clause and the main clause and you are told to begin with unless, make the main clause negative.
(a) If I go to the post office, I will post my letter.
– Unless I go to the post office, I won’t post my letter.
(b) If I see him, I will believe he is an American.
– Unless I see him, I won’t believe he is an American.
- If you have negative sentences in both clauses and you are told to begin with unless, leave the main clause as it is.
- If you don’t practise the language, you won’t learn it.
-Unless you practise the language, you won’t learn it.
(b)If you don’t have enough airtime, you won’t make an international call.
-Unless you have enough airtime, you won’t make an international call.
- If you have a positive sentence in the If clause but a negative in the main clause and you are told to begin with unless, make the main clause positive.
- If I have your letter, I will not reply it.
-Unless I receive your letter, I will reply it.
(b) If the army gets the rebels, it will not forgive them.
– Unless the army gets the rebels, it will forgive them.
- If you have a negative sentence in the if clause but a positive one in the main clause and you are told to begin with unless, don’t make any other changes in the main clause, and leave it positive.
- If you don’t come to my birthday party, I will get annoyed with you.
-Unless you come to my birth day party, I will get annoyed with you.
(b) If Rajab doesn’t stop playing in class, he will fail.
– Unless Rajab stops playing in class, he will fail.
A comma is very important in this conditional structure.
- if it doesn’t rain, I shall go swimming.
Unless it rains, I shall not go swimming.
- If I don’t come early. I shall not enter the classroom.
Unless I come early, I shall not enter the classroom.
Rewrite the given sentences using unless.
- If Peter does not pay my money, he will end up in prison.
- If it doesn’t rain soon, farmers will not plant crops.
- If James does not drive carefully, he will cause an accident.
- If those boys don’t wash the car, I won’t give them food.
- If Joseph does not come, we shall ring him.
- If you don’t see him, he will go away un happy.
- If I don’t hear from you, I will not do anything about it.
- If I don’t get a first grade, I shall repeat the class.
- If Opio and Okia are not late for school, they will be permitted in class.
- If we don’t reply to their letter, we shall not be considered good people.
Using: If No 2
We use If(2) when we are imagining what would happen if the impossible came true. In If (2), the condition cannot be fulfilled. It is just day dreaming.
- If I was God, I would leave man to live for ever.
- If I were you, I wouldn’t eat posho.
Note: In If ( 2) we use would in the result part of the sentence.
Comparison of IF1 and IF2
|If1(conditional sentence one)||If2(conditional sentence two)|
|(a) I will buy a new car if I get money.||I would buy a new car if I got money.|
|(b) If you disturb a dog, it will bite you.||If you disturbed a dog, it would bite you.|
|(c) If you work hard, you will pass.||If you worked hard, you would pass.|
|(d) She will be clever if she reads hard.||She would be clever if she read hard.|
A comma is very important in this structure if the sentence begins with a condition.
Change the following sentences to If ( 2)
- If she writes to me, I will be happy.
- If she doesn’t come, we shall go to her home.
- If my problem is solved, I will grow fat.
- If the bank is open, I will draw some money.
- If it rains today, mother will sow her beans.
- If my brother buys a car, I shall learn to drive.
- If I am given enough text books, I shall pass my final exams.
- If he misses the train, he will go by bus.
- If they come back early, hey will fetch water.
- If they don’t have money, they will not have anything to eat.
THIS VIDEO SHOWS THE USE OF CONDITIONAL SENTENCES