2. If the "if" clause comes first, a comma is usually used. If the "if" clause comes second, there is no need for a comma If you study hard, you will pass the test. You will pass the test if you study hard If + Present Simple, + WillPresent Simple

3. We use the first conditional to talk about actions or events in the future which are likely to happen or have a real possibility of happening.  EXAMPLE  If my father doesn't buy me a bike for my birthday, I will be very unhappy. I think there is a real possibility that my father won't buy me a bike. In this condition, I will be unhappy

4. If I have enough money, conditional clause EXAMPLES I will go to Japan. main clause If you don't put so much sugar in your coffee, you won´t put on so much weight.

5. If we don't protect the elephant, it will become extinct. You'll pay higher insurance if you buy a sports car.

6. She will look completely different if she cuts her hair. You will get heart disease if you eat too much meat.

7. Bibliography  IT was taken from  http://web2.uvcs.uvic.ca/elc/studyzone/3 30/grammar/1cond.htm http://web2.uvcs.uvic.ca/elc/studyzone/3 30/grammar/1cond.htm