Ответ:

1.  He will understand you if you speak slowly.

    He would have undertood you if you ha spoken slowly.

2.  He will find a good job if he tries hard enough.

   He would have found a good job if he had tried hard enough.

3. You will be attacked by the dog if you move.

   You would have been attacked by the dog if you had moved.

4. I won't go away unless you want me to stay.

   I wouldn't have gone away unless you had wanted me to stay.

5. If I make coffee, will you cut the cake?

6. Please don’t sign any contracts unless they are checked by me.

7. If he hurries, he will get a good seat.

   If he had hurried, he would have got a good seat.

8. Someone may get into the house if he forgets to lock the doors.

9. He will pass his exam unless he wants trouble!

10. What will you do if you are free on Sunday?

Объяснение:

Не ясен контекст, и не ясна тема задания. Поэтому:

1, 2, 3, 4, 7 предложения могут иметь два вида и стоят в следующем порядке:

1-е - Conditional  1  (имеет вид БУДУЩЕГО) {Если ты сделаешь это, то будет то-то...}

2-е - Conditional 2 (имеет вид Past Perfect) {Если бы ты сделал то, то результат был бы таким-то...}

Остальные предложения имеют форму Conditional  1