5. If we hear any further news, we will be in touch immediately.
⇒ Should we hear any further news, we will be in touch immediately.
6. If you wish to take advantage of the offer, kindly tick the box on your order form.
⇒ Should you wish to take advantage of the offer, kindly tick the box on your order form.
7. If you change your mind, there will always be a job for you here.
⇒ Should you change your mind, there will always be a job for you here.
 

1: Were the chemical to leak, a large area of the sea would be contaminated.

2: were Germany to beat Romania, they would face Italy in the final.

3: were Mr Morgan still headmaster, he would not permit such bad behaviour.

4: had you given it on time, you would have got a high mark

5: had she become a lawyer, as her parents wished, she would have a large salary

1. Were the chemical to leak, a large area of the sea would be contaminated.
2. Were Germany to beat Romania, they would face Italy in the final.
3. Were Mr. Morgan still headmaster, he would not permit such bad behavior.
4. Had you given it on time, you would have got a high mark.
5. Had she become a lawyer, as her parents wished, she would have earned a large salary.