complex sentense

1. if you study diligently, you will be smart people 
        S                 V                              O
2. if I'm tired, I rest 
       S       V      O
3. if my brother had homework, I will help him 
           S                          V                        O
4. if I am diligent exercise, then I will be healthy 
        S                  V                               O
5. If I am sick, I should be brought to the hospital 
        S       V                               O