Conditional Sentences If Clauses or Conditional Sentences

Conditional Sentences Structure : A conditional sentence is composed of 2 parts : + If-clause Main Clause If it rains tomorrow, we will not come. If-clause Main Clause

Conditional Sentences Types : There are 4 types of conditional sentences. 4 different uses with different tenses 4 different implications

Conditional Sentences Type 0 : Use: Talk about universal truth. Tense : Present tense in both clauses Example : Present Tense Present Tense If you heat water to 100°C, it boils. If you pour oil into water, it floats.

Conditional Sentences Type 1 Use : Talk about a present or future probable case. Tense : If-clause ~ Present Tense Main Clause ~ Future Tense Example : Present Tense Future Tense If I feel sick, I will not go to school. If it rains tonight, we will stay home.

Let’s practise…

Exercise One – Put the verbs in the correct tense. do not listen If you ___________________ (not listen), you _______________ (not know) what to do. will not know will buy John __________________ (buy) a car if he _____________ (get) a job. gets gets Mary ________________(get) a toothache if she_________________ (eat) too many sweets. eats

Conditional Sentences Type 2 (Present Subjunctive) Use : Talk about a present or future improbable case. (A case that is unlikely to happen) Tense : If-clause ~ Past Tense Main Clause ~ would + an infinitive Example : Past Tense Would + infinitive If I were you, I would tell the truth. If I won the lottery, I would buy a car.

Let’s practise…

Exercise Two – Put the verbs in the correct tense. were If I ________________ (be) four years old, I ________________ (learn) to play the piano. would learn wanted If you ________________ (want) to pass, you _________________ (study) harder. would study would be 3. My parents__________________ (be) angry if ______________ (tell) a lie. told

Exercise three – Build sentences.

Conditional Sentences Would + Present Perfect Form Type 3 (Past Subjunctive) Use: Talk about a past, impossible case Tense : If-clause ~ Past Perfect Tense Main Clause ~ Would + Present Perfect Form Example : Past Perfect Tense Would + Present Perfect Form If I had had enough money, I would have bought the camera yesterday. If I had come home earlier, I would not have missed the programme.

Let’s practise…

Exercise Three were If I ________________ (be) four years old, I ________________ (learn) to play the piano. would learn had not failed If I ________________ (not fail) in the examination, my mother_______________ (buy) me a new computer. would have bought would have finished 3. We ________________________ (finish) if we ________________ (have) better preparation. had had

Conditional Sentences SHOULD may replace IF in type 1 Variations: Type 1 : If you see John, ask him to come and see me. Should you see John, ask him to come and see me. COULD or MIGHT may replace WOULD Type 2 : If I were an aeroplane, I could fly in the sky. Were I an aeroplane, I could fly in the sky. WERE may replace IF in an inversion

Conditional Sentences Type 3 : If I had come home earlier, I would not have missed the programme. Had I come home earlier, I would not have missed the programme. HAD may replace IF in an inversion

Conditional Sentences But for+ a noun may replace `If it were not for’ Type 2 & Type 3 : If it were not for the rain, we would go to Shatin. (Type 2) But for the rain, we would go to Shatin. If it had not been for the traffic jam, we would have arrived on time. (Type 3) But for the traffic jam, we would have arrived on time. But for + a noun may replace `If it had not been for’

The Subjunctive Mood Other sentences than the conditional may bear the subjunctive mood. Type 2 Type 3 a. Wish (v) I wish I were a king. (But I am not!) I wish she had left last night. (But she didn’t!) * Non-subjunctive use of wish I wish to travel to Europe next year We wish you a happy birthday.

The Subjunctive Mood b. If only Type 2 If only I were you! Type 2 If only he were born in the USA! (He was not born in USA) If only she had left last night! (She did not leave last night) Type 3

The Subjunctive Mood Type 2 b. Would rather I would rather you came earlier. (But you come late.) Type 3 (But he didn’t.) I would rather he had told me the secret. * Non-subjunctive use of would rather A : Do you want to go fishing today? B : I would rather stay at home and take some rest. (B prefers staying at home to going fishing)

The Subjunctive Mood d. Lest (Conjunction) He put the money in the safe lest someone should / might steal it. Past Tense e. It is (high) time It is (high) time you studied hard. (You have not studied hard. Now the examination is near, so you have to study very hard.) It is time for you to leave (non-subjunctive)

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