GRAMMAR: Conditionals

There are four types of conditionals:

ZERO CONDITIONAL: When we talk about things that are generally or always true. 

If/Whether + Present Simple/Continuous + Present Simple/Continuous

EX: If you do aerobic exercise, you burn up calories.

FIRST CONDITIONAL: Future  events that are likely to happen.

If/ Whether + Present tense + Will/ Won't

EX: Whether we don'y hurry up, we will be late.

SECOND CONDITIONAL: To talk about very improbable situations 

If/ Whether + Past simple + Would + Infinitive

EX: If I had a million dolars, I would buy ten cars.

THIRD CONDITIONAL: When we talk about impossible conditions because they are in the past and we can't change the past.

If/ Whether + Past perfect + Would Have + Participle 

EX: If I had worked harder, I would have got better marks.

Exercises:

 -  If he _________________ (be) younger, he _________________ (travel) more. 

- If I __________________ (go) out tonight, I __________________ (go) to the cinema.

 - If we __________________ (not / see) each other tomorrow, we_________________ (see) each other next week.

 - If he __________________ (come), I __________________ (be) surprised.

 - If I _________________ (be) you, I _________________ (get) a new job.

 -  If he _________________ (be) younger, he _________________ (travel) more.

 -  If we _________________ (not / be) friends, I _________________ (be) angry with you.

 - If you ______________ (not / be) late, we ______________ (not / miss) the bus.

 -  If she ______________ (study), she ______________ (pass) the exam.

 -  If they ______________ (go) to bed early, they ______________ (not / wake) up late

 -  If we ______________ (arrive) earlier, we ______________ (see) John.

 - If you __________________ (get) back late, I __________________ (be) angry.

-  If I _________________ (have) enough money, I _________________ (buy) a big house.