CONDITIONAL

S

1st

2nd

Zero

IF….

A conditional sentence is composed of 2 parts :

If-clause Main Clause

+

If Marie doesn't eat dinner, she gets hungry.

(if-clause) (Main clause)

There are four types of conditional sentences

Type: 0

Type: 2

Type: 1

Type: 3

The zero conditional is used to talk about things which are always true – scientific facts and general truths.

Use

Formif clause main clause

Present simple, present simple.

if clausemain

clause

If you heat water to 100

degrees, it boils.

main clause if clause

Water boils

if you heat it to 100 degrees.

if clausemain

clause

If you expose phosphorus to

air, it

burns.main clause if clause

Phosphorus burns

if you expose it

to air.

if clause main clause

If man looks at

her,

she always blushes.

if clause main clause

She always blushes

if man looks at

her.

IMPERATIVE + IF CLAUSEif clause main clause

If Irene is

tired, don’t

disturb her.

main clause if clause

Don’t disturb Irene

if she is tired.

This is an example:.If you go out in the

rain, you will get wet.

But you could also say:

You will get wetif you go out in the

rain.Both are correct and have a similar

meaning

WILL / CAN + IF CLAUSE

if clause main clause

Present

simple,

will/can +

infinitive.

1st conditional

Real / possible

Form

Use

if clause main clause

If the phone rings,

I will answer it.

if clause main clause

If the weather is

sunny later,

we can go to the

beach.

Examples:

If you drop that glass, it will break.

Nobody will notice if you make a mistake.

If I have time, I'll finish that letter.

If you do not hurry, you will miss the train.

2nd conditional

WOULD / COULD + IF CLAUSE

if clause main clause

Past

simple, would/could +

infinitive.

unreal/ imagination

form

Use

if clause main clause

If I had a million dollars, I would buy a big house.

if clause main clause

If I were rich,

I would travel

around the world.if clause main clause

If I studied more,

I would pass my English

exam.

Example Explanation

If I were you, I would drive more carefully in the rain.

I am not you -- this is unreal.

Paula would be sad if Jan left.Jan will not leave -- that's not going to happen.

If dogs had wings, they would be able to fly.

Dogs don't have wings -- that's impossible.

3rd conditionalWOULD / COULD HAVE + PAST

PARTICIPLE + IF CLAUSEif clause main clause

Past perfect simple or

continuous,

would/could have+ past participle.

Impossible

if clause main clause

If you hadn’t

been so lazy,

you would have been in time for breakfast.

Match the sentences to get Zero Type Conditionals

1. If you put oil on water,

2. If you put a piece of iron on water,

3. If you go to another time zone,

4. If you heat water to 100 C,

5. If you expose phosphorus to air,

6. If red and white are mixed,

A. the time changes.

B. it boils.

C. it gets pink.

D. it sinks. (doesn't float)

E. it burns.

F. it floats. (doesn't sink)

Complete the Conditional Sentences. Decide whether to use Type I or II.

1. If you do your homework now, we (go) to the cinema in the evening.

2. If we (order) the book now, we will have it tomorrow.

3. She ( not say)that if she were your friend.

4. If he (not/have) time tomorrow, we will meet the day after.

will goorderwould buymetwill call

1. If I had more money, I (buy) a bigger car.

2. If I (meet) my favourite movie star, I would ask him for an autograph.

3. I ‘(call) you if I need your help.

4. I would go swimming if the weather (to be) better.

5. If I were you, I (know) what to do.

6. If we don't order the tickets soon, there (be) any tickets left.