This document discusses different types of conditionals in English: zero conditional, first conditional, second conditional, third conditional, and mixed conditionals. It provides the form and use of each conditional. The zero conditional uses present tense to describe generally true events. The first conditional uses present/future to talk about probable future events. The second conditional uses past/would to discuss unlikely or hypothetical present/future situations. The third conditional uses past perfect/would have to refer to impossible past situations. Mixed conditionals combine elements of different conditionals.

1. Z E R O C O N D I T I O N A L
F I R S T C O N D I T I O N A L
S E C O N D C O N D I T I O N A L
T H I R D C O N D I T I O N A L
M I X E D C O N D I T I O N A L
CONDITIONALS

2. ZERO CONDITIONAL
FORM
 If + present simple, present simple
If I go to bed late, I always feel tired the
next day
 Present simple if+ present simple
I always feel tired the next day if I go to bed late

3. USE
 To describe something that is generally true
 We can use if and when with similar meaning

4. FIRST CONDITIONAL
FORM
If +PRESENT SIMPLE, FUTURE
If it’s hot tomorrow, we’ll go to the beach
FUTURE If +PRESENT SIMPLE
We’ll go to the beach if it’s hot tomorrow

5. FIRST CONDITIONAL
USE
 To talk about something that is going to happen in
the future. It is very possible.
 In the second clause we can use: will, shall, be going
to, imperative, future continuous, future perfect, and
the modals can, could, may, might, should, ought to,
must.

6. SECOND CONDITIONAL
FORM
If PAST SIMPLE, WOULD+INFINITIVE
If she changed her job, she would be happier
WOULD + INFINITIVE If PAST SIMPLE
She would be happier if she changed her job

7. SECOND CONDITIONAL
USE
 To talk about the present when the event in the if-
clause is not true. (hypothetical situations)
 To talk about the future when the event in the if-
clause is unlikely to happen. (situations that are
difficult to happen)

8. THIRD CONDITIONAL
FORM
If PAST PERFECT, WOULD+PERFECT INFINITIVE
If she had come earlier, she would have got the bus
WOULD + PERFECT INFINITIVE If PAST PERFECT
She would have got the bus if she had come earlier

9. THIRD CONDITIONAL
USE
 It refers to the past, a past situation that didn’t take
place, never happened

10. MIXED CONDITIONALS
FORM
3rd 2nd
If + PAST PERFEC WOULD/COULD/MIGHT+INFINITIVE
If I had worked harder at university, I would have a degree now
1st 2nd
If + PRESENT SIMPLE WOULD + INFINITIVE
If she comes to the party, she would bring her boyfriend
2nd 3rd
If + PAST SIMPLE WOULD + PERFECT INFINITIVE
If he loved her, he would have stayed with her