If an emergency arises, dial 999. -> Should...
Should an emergency arise, dial 999.
He discovered that he had injured his knee when he tried to run. -> Only when...
Only when he tried to run did he discover that he had injured his knee.
Peter didn't realise that he had lost his keys until he got home. -> Not...
Not until Peter got home did he realise that he had lost his keys.
They started to argue soon after they had got married. -> No sooner
No sooner had they got married than they started to argue.
You can't use my new car at any time. -> At no time
At no time can you use my new car.
There are no circumstances where audience members may consume alcohol. -> Under no circumstance...
Under no circumstance may audience members consume alcohol.
If Mr Chan had been kinder to his employees, his business would not have collapsed.
Had Mr Chan been kinder to his employees, his business would not have collapsed.
The demands of her job are such that she is rarely able to take a holiday. -> Such...
Such are the demands of her job that she is rarely able to take a holiday.
If he studied, he would pass the exam.
Were he to study, he would pass the exam.
The matter could be explained in no other way. -> In...
In no other way could the matter be explained.
I have seldom heard such beautiful singing. -> Seldom...
Seldom have I head such beautiful singing.
He would never play in front of a live audience again. -> Never...
Never would he play in front of a live audience again.
If you had told me, I could have helped you.
Had you told me, I could have helped you.
We won't consider you for the basketball team until you grow up. -> Not until...
Not until you grow up will we consider you for the basketball team.
The gang didn't know that the police had them under surveillance. -> Little...
Little did the gang know that the police had them under surveillance.
You come to realise the significance of the murder only in the last few pages of the book. -> Only in the last...
Only in the last few pages do you come to realise the significance of the murder