1. Read these sentences...

2. If people don’t get enough sleep,
they are dangerous drivers.
Water turns to ice if it freezes.

3. When do you use these sentences ?
to describe what always happens in some situations
to talk about scientific facts
These are
TYPE 0 Conditional Sentences

4. at how we FORM these sentences.
If-clause
Main clause
IF + Present Simple,
Present Simple or
Main clause
If-clause
Present Simple
IF + Present Simple

5. Now look at these examples.

6. You will be sorry if you buy that car.
If James studies hard,
he will be prepared for the quiz.

7. TYPE 1 Conditional Sentences
When do you use them ?
to talk about things that probably will happen in the future, considering certain circumstances
to describe possible situations and their possible results
to talk about “real situations” – when we are certain that something will happen when someone does something
TYPE 1 Conditional Sentences
These are

8. WILL / WON’T + infinitive WILL / WON’T + infinitive
This is how we FORM the 1st Conditional.
If-clause
Main clause
IF + Present Simple,
WILL / WON’T + infinitive or
Main clause
If-clause
WILL / WON’T + infinitive
IF + Present Simple

9. And what about these ?

10. If I had enough money, I would take a trip to Hawaii.
I wouldn’t do that if I were you.

11. TYPE 2 Conditional Sentences
When can you use
this type of sentences ?
to describe possible situations and their possible results
to talk about “imaginary situations” – we imagine something that we are (almost) certain that won’t come true
to give someone advice, using the expression
“ If I were you…”
These are
TYPE 2 Conditional Sentences

12. WOULD / WOULDN’T + infinitive WOULD / WOULDN’T + infinitive
Here is how we FORM the 2nd Conditional.
If-clause
Main clause
IF +Past Simple,
WOULD / WOULDN’T + infinitive or
Main clause
If-clause
WOULD / WOULDN’T + infinitive
IF + PAST Simple

13. Don't forget... Conditional sentences have two clauses:
an IF clause and a MAIN clause.
the IF clause presents the condition
the other clause presents the results

14. Now let's do some exercises . . .