Inglés
09/10/2015 06:22:32


TYPE 1 CONDITIONAL

Form

if + Simple Present, will-Future

Example: If I find her address, I will send her an invitation.

The main clause can also be at the beginning of the sentence. In this case, don't use a comma.

Example: I will send her an invitation if I find her address.

Note: Main clause and / or if clause might be negative. See Simple Present und will-Future on how to form negative sentences.

Example: If I don’t see him this afternoon, I will phone him in the evening.

Use

Conditional Sentences Type I refer to the future. An action in the future will only happen if a certain condition is fulfilled by that time. We don't know for sure whether the condition actually will be fulfilled or not, but the conditions seems rather realistic – so we think it is likely to happen.

Example: If I find her address, I’ll send her an invitation.

I want to send an invitation to a friend. I just have to find her address. I am quite sure, however, that I will find it.

Example: If John has the money, he will buy a Ferrari.

I know John very well and I know that he earns a lot of money and that he loves Ferraris. So I think it is very likely that sooner or later he will have the money to buy a Ferrari.



In a Type 1 conditional sentence, the tense in the 'if' clause is the simple present, and the tense in the main clause is the simple future.

If clause (condition)Main clause (result)
If + simple presentsimple future
If this thing happensthat thing will happen.

As in all conditional sentences, the order of the clauses is not fixed. You may have to rearrange the pronouns and adjust punctuation when you change the order of the clauses, but the meaning is identical.


EXAMPLES
  • If it rains, you will get wet.
  • You will get wet if it rains.
  • If Sally is late again I will be mad.
  • I will be mad if Sally is late again.
  • If you don't hurry, you will miss the bus.
  • You will miss the bus if you don't hurry.

FUNCTION

The type 1 conditional refers to a possible condition and its probable result. These sentences are based on facts, and they are used to make statements about the real world, and about particular situations. We often use such sentences to give warnings. In type 1 conditional sentences, the time is the present or future and the situation is real.

EXAMPLES
  • If I have time, I'll finish that letter.
  • What will you do if you miss the plane?
  • Nobody will notice if you make a mistake.
  • If you drop that glass, it will break.
  • If you don't drop the gun, I'll shoot!
  • If you don't leave, I'll call the police.

In type 1 conditional sentences, you can also use modals in the main clause instead of the future tense to express the degree of certainty, permission, or a recommendation about the outcome.

EXAMPLES
  • If you drop that glass, it might break.
  • I may finish that letter if I have time.
  • If he calls you, you should go.
  • If you buy my school supplies for me, I will be able to go to the park.



Structure of the first conditional
positivenegativequestion
If I see him, I'll (I will) tell him.If you don't hurry, you'll (you will) miss the bus.What will you do if there is a problem?



The first conditional – common mistakes
Common mistakesCorrect versionWhy?
If you will go to England, you will improve your English.If you go to England, you will improve your English.We use the present simple in the if-clause.
I'll tell him if I will see him.I'll tell him if I seehim.We use the present simple in the if-clause.
If I find his number, I call him.If I find his number, Iwill call him.We use will in the main clause, to express certainty in the future.



---- EXCERCISES (Many kinds) ---- 


  1. If Caroline and Sue  the salad, Phil  the house.
  2. If Sue  the onions for the salad, Caroline  the mushrooms.
  3. Jane  the sitting room if Aaron and Tim  the furniture.
  4. If Bob  up the kitchen, Anita  the toilet.
  5. Elaine  the drinks if somebody  her carry the bottles.
  6. If Alan and Rebecca  the food, Mary and Conor  the sandwiches.
  7. If Bob  after the barbecue, Sue  the guests in.
  8. Frank  the DJ if the others  along their CDs.
  9. Alan  the drinks if Jane  him some of her cocktail recipes.
  10. If they all  their best, the party  great.


Complete the Conditional Sentences (Type I) by putting the verbs into the correct form.

  1. If you (send)  this letter now, she (receive)  it tomorrow.
  2. If I (do)  this test, I (improve)  my English.
  3. If I (find)  your ring, I (give)  it back to you.
  4. Peggy (go)  shopping if she (have)  time in the afternoon.
  5. Simon (go)  to London next week if he (get)  a cheap flight.
  6. If her boyfriend (phone / not)  today, she (leave)  him.
  7. If they (study / not)  harder, they (pass / not)  the exam.
  8. If it (rain)  tomorrow, I (have to / not)  water the plants.
  9. You (be able/ not)  to sleep if you (watch)  this scary film.
  10. Susan (can / move / not)  into the new house if it (be / not) ready on time.


1. If she ……………….. (invite) me, I ………………. (go)

2. If it ……………………. (rain), we …………………… (cancel) the match.

3. If I ……………….. (get) a promotion, I ………………… (buy) a car.

4. If she ………………. (be late), we …………………. (go) without her.

5. If you ………………. (ask) more politely, I ………………… (buy) you a drink.

6. If you …………………. (not behave), I ………………. (throw) you out.

7. If he ……………….. (win) the first prize, his mother ……………… (be) happy.

8. If he ……………….. (get) proper medical care, he ………………. (survive)

9. If the drought …………………… (continue), plants and animals …………………… (perish).


  1. If I  (to study), I  (to pass) the exams.
  2. If the sun  (to shine), we  (to walk) to the town.
  3. If he  (to have) a temperature, he  (to see) the doctor.
  4. If my friends  (to come), I  (to be) very happy.
  5. If she  (to earn) a lot of money, she  (to fly) to New York.
  6. If we  (to travel) to London, we  (to visit) the museums.
  7. If you  (to wear) sandals in the mountains, you  (to slip) on the rocks.
  8. If Rita  (to forget) her homework, the teacher  (to give) her a low mark.
  9. If they  (to go) to the disco, they  (to listen) to loud music.
  10. If you  (to wait) a minute, I  (to ask) my parents.
  1. - If you  my bike, I  you with the maths homework.
  2. - It  too hot if he  to Greece in August.
  3. - If Peter on the sofa, his sister  next to him.
  4. - The policeman  you the way if you  him.
  5. - If it  in the Alps, it  in Munich.
  6. - I  you my laptop if you  to be careful with it.
  7. - If you  some tomatoes, the sauce  much better.
  8. - If Tom  this string, he  the box.
  9. - If I  Simon's mobile, I  it to the office.
  10. - We  lost if we  the town map.

1) If I ___________  (go) out tonight, I ___________   (go) to the cinema...

2) If you ___________   (get) back late, I  ___________  (be) angry...

3) If we ___________   (not/see) each other tomorrow, we ___________   (see)each other next week...

4) If he ___________   (come) , I ___________   (be) surprised...

5) If we ___________   (wait) here, we ___________   (be) late...

6) I we ___________   (go) on holiday this summer, we ___________   (go) to Spain...            

7) If the weather ___________   (not/improve) , we ___________   (not/have) a picnic...     

8) They ___________   (go) to the party if they  ___________  (be) invited...

9) If I ___________   (not/go) to bed early, I ___________   (be) tired tomorrow...

10) If we  ___________  (eat) all this cake, we ___________   (feel) sick ...

11) She ___________   (stay) in London if she  ___________  (get) a job...

12) If you ___________   (not/want) to go out, I ___________   (cook) dinner at home...      

13) I ___________   (come) early, if you ___________   (want)...

14) He ___________   (not/get) a better job if he ___________   (not/pass) that exam...      

15) I  ___________  (buy) a new dress if I  ___________  (have) enough money...

16) She ___________   (cook) dinner if you ___________   (go) to the supermarket...             

17) They  ___________  (go) on holiday if they ___________   (have) time...

18) We ___________   (be) late if we ___________   (not/hurry)...

19) She ___________   (take) a taxi if it ___________   (rain)...

20) I ___________   (not/go) if you ___________   (not/come) with me.

1.    I wish she __________ (come) to my party.

2.    She __________ (marry) him if he asked her to become his wife.

3.    They __________ (move) to London if they spoke English.

4.    If I were a millionaire, I __________ (travel) a lot.

5.    She __________ (live) in a detached house if she owned one.

6.    If he spoke French, he __________ (understand) the new students from France.

7.    Jack __________ (go) to the party if his friends joined him.

8.    I __________ (visit) them if they invited me.

9.    Tom __________ (come) if he knew how to get there.

10. If Jill lived in Vienna, she __________ (go) to the theatre more often.


  1. If you  (to dive) into this river, you  (to hurt) yourself.
  2. If the sun  (to shine), the children  (to play) outside.
  3. Richard  (to walk) to school if he  (to miss) the bus.
  4. Emily  (to buy) the cola if you  (to pack) the picnic basket.
  5. If I  (to be) in Venice, I  (to rent) a boat.
  6. Michael's teacher  (to phone) his parents if he  (to text) in the lesson.
  7. If she  (to answer) this question correctly, she  (to get) an extra point.
  8. My sister  (to be) angry if I  (to turn) on the music too loud.
  9. Your room  (to look) much tidier if you  (to keep) your hamster in the cage.
  10. If we  (to surf) the Internet, we  (to find) a lot of information about Loch Ness.
  1. If we  (to send) an invitation, our friends (to come) to our party.
  2. He  (not/to understand) you if you  (to whisper).
  3. They  (not/to survive) in the desert if they (not/to take) extra water with them.
  4. If you  (to press) CTRL + s, you  (to save)the file.
  5. You  (to cross) the Channel if you  (to fly)from Paris to London.
  6. Fred  (to answer) the phone if his wife  (to have) a bath.
  7. If Claire  (to wear) this dress at the party, our guests  (not/to stay) any longer.
  8. If I  (to touch) this snake, my girlfriend (not/to scream).
  9. She  (to forget) to pick you up if you (not/to phone) her.
  10.  (to remember) you if you  (to give) me a photo.


  1. If I  to classical music, I  good poems.
  2. Lisa  after her baby brother if her father  jogging.
  3. If you  the train, you  in Sheffield before 8 pm.
  4. The girls  if they  the tickets yet.
  5. If Phil  that, Sophia .
  6. If they  careful with the spelling of the new words, they  a good mark.
  7. You  orange if you  yellow to red.
  8.  Emily my car if she  it.
  9. If she  my dictionary, she  it back to me.
  10. John  a new monitor if his mother  him 100 Euros.
  1. If it  (to rain), the children  (not/to go) for a walk.
  2. If she  (not/to read) the novel, she  (not/to pass)the literature test.
  3. If I  (not/to argue) with my father, he  (to lend)me his motorbike.
  4. If we  (to take) the bus, we  (not/to arrive) in time.
  5. If Dick  (not/to buy) the book, his friends  (to be)angry with him.
  6. If Tom  (not/to tidy up) his room, Victoria (not/to help) him with the muffins.
  7. If the boys  (not/to play) football, the girls (not/to come) to the football pitch.
  8. If you  (to eat) too much junk food, you  (not/to lose) weight.
  9. If I  (not/to make) breakfast tomorrow morning, my girlfriend  (not/to love) me anymore.
  10. If they  (not/to hurry), they  (not/to catch) the train.

1. If you _________ greasy food, you will become fat.
  eat
  will eat

2. If your sister goes to Paris, she _________ a good time.
  has
  will have

3. If he _________ that, he will be sorry. 
  will do
  does

4. If I leave now, I ________ in New York by 8:00 PM.
  will arrive
  arrive


5. You ________ on your test if you don't study.
  won't do well
  don't do well

6. They won't know the truth if you ________ them.
  won't tell
  don't tell

7. If I bake a cake, ________ have some?
  will you
  do you

8. If he ________ you, will you answer the phone?
  will call
  calls

9. If you don't go to the party, I ________ very upset. 
  am
  will be

10. If you get a haircut, you ________ much better.
  will look
  look


1If I (find)  his telephone number, I'll call him. 

2If you come early, you (meet)  my brother. He'll be here until 3 o' clock. 

3Your photos (be)  printed and ready within an hour if you pay extra now. 

4Please call me as soon as you (get)  there. 

5You (must)  do the entrance exam next week if you want to study at this school. 

6I'm sure he'll have an accident if he (keep)  driving like that. 

7I'll start work on the report when I (get)  to work tomorrow morning. 

8I'll start work on the report as soon as I (get)  to work tomorrow morning. 

9I'll do some work in the garden if it (not/rain) tomorrow. 

10Next time, tell him to pay the invoice as soon as it (come) . 

11It (be)  cheaper if we buy the food for the party wholesale. 

12If you (need)  any more information, please contact us. 



1. If you  (not/hurry), we will be late!

2. If Enrico  (pass) his exam, he will be very happy.

3. However, if Enrico fails, he  (not be ) very happy.

4. If you stay awake all night, you  (be) very tired tomorrow.

5. Alan  (not \ win) the lottery if he doesn't buy a ticket.

6. If you eat too much chocolate you  (become) fat.

7. We  (not \ go) to the restaurant if you're not hungry.

8. If Rick drives too fast he  (have) an accident.




Match the sentence endings in the box with the first half of each sentence below. Write the correct letter (A-H) in the box.


  • if you call out a technician to repair it.
  • the telephone and the doorbell will ring together.
  • the electricity will go out ten minutes before it begins.
  • if you are waiting for a bus.
  • your gate will be the furthest away.
  • if you use your friend's new computer.
  • it will be in the last drawer you open.
  • it will not be the one you want.


  1. It will start to rain heavily 
  2. If a bus finally arrives, 
  3. If you are looking for your new blue sweater, 
  4. You will open an e-mail with a virus 
  5. Your television/computer will work perfectly 
  6. If you organize a large dinner party, 
  7. If you get into the bath with a big book and a glass of wine, 
  8. If you are late for your flight, 



1. If you (send)  the letter today, it'll arrive tomorrow. 

2. If you don't study, you (pass)  the exam. 

3. If it rains, we (stay)  at home. 

4. If it (be)  sunny, we'll go to the beach. 

5. If that shop (be)  closed, we'll go to another one. 

6. If you (want) , we'll go to the park. 

7. If Adam (arrive)  late, his father will be upset. 

8. If you work hard, you (get)  a bonus. 

9. If it isn't expensive, I (buy)  two. 

10. If you (call)  me, I won't answer the phone. 


  1. If I ...................................... (work) harder, I ...................................... (know) more.
  2. If he ...................................... (not eat) breakfast, he ...................................... (be) hungry.
  3. If you ...................................... (have) a toothache, ...................................... (go) to the dentist.
  4. If Dorothy ...................................... (not come) back home before midnight, her parents ...................................... (be) very angry.
  5. Bill’s wife ...................................... (not be) unhappy if he ...................................... (wash) the dishes.
  6. Our plants ...................................... (die) if we ...................................... (not water) them.
  7. Ted’s mother ...................................... (be) delighted if he ...................................... (cook) dinner.
  8. We ...................................... (not sunbathe) if it ...................................... (not stop) raining.
  9. If they ...................................... (not save) some money, they ...................................... (not buy) a house.
  10. If you ...................................... (have) a cold, ...................................... (go) to bed.
  11. If you ...................................... (find) my wallet, ...................................... (let) me know.
  12. If she ...................................... (have) a poor sight, she ...................................... (should/wear) glasses .
  13. You ...................................... (get) wet if you ...................................... (not take) an umbrella.
  14. Kate ...................................... (may/have) sleeping problems if she ...................................... (watch) TV for more than 12 hours a day.
  15. You ...................................... (not get) a surprise if you ...................................... (not be) quiet.
  16. If your boyfriend ...................................... (propose) to you, what ...................................... (you/say)?
  17. If you ...................................... (take) an aspirin, you ...................................... (feel) much better.
  18. If Claudia ...................................... (want) to lose some weight, she ...................................... (should/stop) eating sweets.
  19. ...................................... (tell) your brother that I want to talk to him if you ...................................... (see) him.
  20. Kate’s mother ...................................... (give) her a dessert if she ...................................... (eat) dinner.
  21. You ...................................... (not be) punished if you ...................................... (not be) noisy.





1. If you .......... my advice, you'll accept it.
   a)will be taking
   b)will take
   c)are taking
   d)take

2. If we .......... a few more days
   a)hang on
   b)are hanging on
   c)will hang on
   d)will be hanging on

3. If you .......... , I'll tell Jagger that we need time to think it over
   a)want
   b)are wanting
   c)will want
   d)would want

4. When he .......... that, he'll be a bit impatient
   a)is hearing
   b)will hear
   c)would hear
   d)hears

5. I'm sure that if I .......... to him sweetly enough he'll hold on and not look elsewhere.
   a)'m talking
   b)will talk
   c)talk
   d)would talk

6. If things are looking a bit dicey, I .......... to you.
   a)get back
   b)'ll get back
   c)would get back
   d)am getting back

7. So, if I .......... from you , I'll assume everything is fine.
   a)don't hear
   b)hear
   c)am hearing
   d)won't hear

8. I'll only call you if I .......... there is a problem.
   a)would think
   b)will think
   c)think
   d)am thinking

9. So unless I .......... from you,
   a)hear
   b)am hearing
   c)will hear
   d)would hear

10. I .......... no need to worry.
   a)have
   b)am having
   c)do not have
   d)

will have




Unless and If
Often when we are talking about present situations, we use unless instead of if...not.

Unless means except if or simply it means if...not.

Both of these examples have the same meaning and refer to the present time.

"You can't go on vacation unless you save some money."
"If you don't save some money, you can't go on vacation."

"You will feel cold if you don't wear a coat."
"You will feel cold unless you wear a coat."

Unless is good to use when it highlights an exception to what is generally true. In this example I only have one reason why i may be late: traffic (vehicles on the road):

"I'll arrive at 10am unless there is traffic."
"I'll arrive at 10am if there isn't traffic."

This next example shows us that sometimes the context can change and unless is not exactly interchangeable with if...not.

"I'll be annoyed if I do not arrive at 10am." - Being late will annoy me.
"I'll be annoyed unless I arrive at 10am." - The only thing that can stop me from being annoyed is arriving at 10am.

Now let's practice using if...not and unless. Choose the correct form in each sentence:

  • 1 - My dog ___ bark unless it is hungry.



  • 2 - Unless you ___ to go to bed early, we should go out.



  • 3 - ___ you don't slow down, we are going to crash!



  • 4 - You cannot go into bars ___ you are over 18.



  • 5 - In my country, ___ you cannot speak English, it's hard to get a good job.



  • 6 - She'll fail the exam if she ___ study.



  • 7 - We'll be late ___ we leave soon.



  • 8 - ___ I am not feeling better tomorrow I will go to the doctor's.



  • 9 - ___ you do not make the payment in time, your car will be confiscated.



  • 10 - You will lose your job ___ you change your attitude and become friendlier.


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