2 Were it not so cold, we could walk into town.
3 Should our plans change, I'll let you know.
4 Should you experience any technical problems, please call the helpline.
5 Were I to be offered a promotion, I would stay at the company.
6 Had the weather been better, we would have stayed longer.
7 were it not for your help, I wouldn't have known what to do.8 Had my alarm not gone off, I would still be asleep.