Sunday 9 February 2014

Conditional




Conditional

1. Zero conditional:
When you heat ice, it melts/ if you heat ice, it melts
Form: When/ If + S + verb in the present simple, S + verb in the present simple
Use: Zero conditional is used to express a fact or a general issue.
2. Conditional type :“I”:
If I have money, I will buy a car.
Form: if + S + Verb in the present simple, S + will + infinitive of the verb
Use: conditional type “I” is used to indicate that something is possible and also very likely to be fulfilled in the future.
3. Conditional type: “II”:
If I had money, I would/ could/ might buy a car.
Form: If + S + Verb in the past simple, S + would/ could/ might ….+ infinitive of the verb
Use: conditional type “II” is used to indicate that something is possible, but very unlikely to be fulfilled at present time.
4. Conditional type “III”:
If i had revised my lessons, i would /could/ might have passed the exam
I would/ could/might have passed the exam if i had revised my lessons
Form:
● If + S + past perfect, S + would/ could/ might… + have + past participle of the verb.
● S + would/ could/ might… + have + past participle of the verb + if + S + past perfect
a third conditional sentence consists of two clauses: an if-clause and the main clause:
If the if-clause comes first, a comma is usually used.
If the if-clause comes second, there is no need for a comma.
use: the third conditional is used to talk about things which didn’t happen in the past. It is often used to express criticism and regret.

Example
Explanation
If you had driven more carefully, you wouldn’t have had an accident
→ Criticism: you had an accident because you didn’t drive carefully.
If we had played a little better, we could have won the game
→ regret: we didn’t play well, so we lost the game

5) The difference between “when” and “if” in conditional sentences:
● “If” is used for something that, according to the speaker might happen (he is not sure).
e.g: we can spend the afternoon on the beach if the weather is fine.
● “When” is used for something that, according to the speaker, will happen (he is sure).
e.g: I will clean up the kitchen right away when I’m back from work