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1 -.If she doesn't try , she won't succeed .

   - If she didn't try , she would doesn't succeed.

   - If she had tried , she would haven't succeeded.

2. - If I see her , I will tell her .

    - If I saw her , I would tell her .

    - If had seen , I would have telled her.

3. - Will you do it if I ask you ?

    - Would do you do it if I asked you ?

    - Would have you done if I had asked?

4. - If I is ill , I will stay at home .

   - If I was ill , I would stay at home .

   - If I had been ill , I would have stayed at home .

5. - What you will do if the bus doesn't come .

    - What you woud  do if the bus didn't come .

    - What you would have done if the bus hadn't come .

6.-  I will be sorry if she leaves .

   - I would be sorry if she leaved .

   - I would have been sorry if had leaved .

7. - I won't stay in this job if I can find another one.

    - I would don't stay in this job if I could find another one .

    - I would haven't stayed in this job if I hadn't could find another one .