If clause

1.  I didn't feel good yesterday, if I (feel) had felt better,
     I (come) would have come to class yesterday.

2.  I don't  feel good. If I (feel) felt better
     I (take) would take a walk in the park today

3.  I have a cold today, but I will probably feel better tommorow,
     I If i (feel) Feel be better tomorow. I (go) will go to class.

4.  I'm sorry that you didn't come to the party.
     if you (come) Had come you (have) would have had a good time.

5. I'm tired , If I (be not) am not tired.
     I (help) will help you.