1. by JFBS

2. Conditional Types
First Type: Possible & Probable conditions
Second Type: Possible & Improbable conditions
Third Type: Impossible conditions

3. First Type: Possible & Probable conditions
USE:
-Para referirse a hechos posibles o probables en el futuro
- Para hacer promesas y advertencias
IF CLAUSE MAIN CLAUSE
Simple Future
Simple Present Imperative
Can
If you come I will be happy
If you want to pass Study!
If we buy a ticket We ................ (go) to the
concert
If she ..................... she will come with us
(arrive) soon
If they dance too much They .............................
(get) tired
If you need my car .............................. (take)
it

4. First Type: Possible & Probable conditions
IF CLAUSE MAIN CLAUSE
If you ........ (drink) a lot I .......... (leave) you
If the road ............ (be) wet ............(watch out) !
If he .......... (lose) his key You ................ (lend) him
yours
If she .............. (not buy) any We ................(have dinner)
food
If they ......... (not stop) We .......... (not finish) our
talking lesson
If you ....... (take) the dog for I ................ (give) you some
a walk money

5. Second Type: Possible & Improbable conditions
USE:
- Para referirse a situaciones presentes y futuras hipotéticas, es
decir, imaginarias e improbables.
IF CLAUSE MAIN CLAUSE
Simple Past Would + root verb
Could + root verb
If she studied she would pass her controls
If he ran he would catch the bus
If I went to China I could be with him
If I were ..................... ...................................
.

6. Second Type: Possible & Improbable conditions
IF CLAUSE MAIN CLAUSE
If you ........ (drink) a lot I .......... (leave) you
If the road ............ (be) wet You ............(have) an accident
If he .......... (lose) his key You ................ (lend) him
yours
If she .............. (not buy) any We ................(have dinner)
food
If they ......... (not stop) We .......... (not finish) our
talking lesson
If you ....... (take) the dog for I ................ (give) you some
a walk money

7. Third Type: Impossible conditions
USE:
- Para referirse a hechos hipotéticos del pasado, es decir, a cosas
que nunca sucedieron.
IF CLAUSE MAIN CLAUSE
Past Perfect Present Perfect Conditional
(Would have + past participle)
If it hadn't rained We would have gone to the
country
If she had studied She ............ (pass) her
controls
If you ................... (invite) They 'd have come to the party
them
If I had known it I .......................(arrive)
earlier
If he............................. I 'd have seen him
(phone)

8. Third Type: Impossible conditions
IF CLAUSE MAIN CLAUSE
If you ........ (drink) a lot I .......... (leave) you
If the road ............ (be) wet You ............(have) an accident
If he .......... (lose) his key You ................ (lend) him
yours
If she .............. (not buy) any We ................(have dinner)
food
If they ......... (not stop) We .......... (not finish) our
talking lesson
If you ....... (take) the dog for I ................ (give) you some
a walk money

9. Other expressions used in conditional clauses:
1st Type: You won't finish the race unless you
UNLESS control your effort.
" Si no…"
"A menos que..."
1st Type: "I will only tell my age on condition
"ON CONDITION THAT" that you tell yours."
"PROVIDING THAT" “I will only tell my age providing
"SO LONG AS" that you tell yours”
"AS LONG AS “I will only tell my age so long as
"Siempre que, en tanto que, you tell yours”
con la condición de que,...etc. “I will only tell my age as long as
Sólo si“ you tell yours”
2nd Type: “I wouldn’t buy a place even if I
“EVEN IF” Se utiliza para were rich”
dar énfaisis a la proposición
condicional
“aunque”

10.  Para transformar una frase en una oración condicional,
debemos seguir estos pasos:
 Sentence:
◦ I arrived late because I missed the bus.
◦ If I…
 1 Observa la frase original y decide cuál es la referencia temporal:
pasado, presente o futuro. I arrived late… (pasado)
 2 Decide qué tipo de condicional necesitas (de primer, segundo o
tercer grado): algo que nunca sucedió (3er tipo)
 3 Escoge la forma adecuada del verbo: I hadn’t missed; I wouldn’t
have arrived.
 4 Escribe la frase complete y compruébala para decir si necesitas
hacer algún otro cambio: any – some. Corrige la puntuación.
 Answer: If I hadn’t missed the bus, I wouldn’t have arrived
late.

11. Sample rephrasing
First Conditional:
- Be careful – someone’s going to see you!
- If you are careful, nobody will see you!
- If + Subject + present simple, subject + future will (aff or neg)
Second Conditional:
-Kathy wants to go to the movies but doesn't have any money
-If Kathy had some money, she would go to the movies.
-If + Subject + past simple (neg or aff), subject + would /could/might + infinitive +
complements
Third Conditional:
-Tom was not going to come to dinner the next day because you insulted him.
-If Tom hadn’t insulted him, he would have come to dinner.
- If + Subject + past perfect (neg or aff), subject + would/ could/might + have + pp + C

12. Other samples
- His book will be published provided he takes his manuscript to the editor.
Unless he takes his manuscript to the editor, his book won’t be published.
Unles + present simple, future simple (aff or neg)
-I didn't have an umbrella with me and so I got wet.
I wouldn't have got wet, if I had had an umbrella with me.
-We don't go to school when it rains
If it rains, we don’t go to school.
-I didn't move the table because Jack didn't help me.
If Jack had helped me, I would have moved the table.
- You drink too much coffee, that's why you don't sleep.
If you didn’t drank too much coffee, you would sleep.
-You never talk to me, so you don't know anything about me.
If you talked to me, you would know something about me.