If it hadn´t been raining the roads wouldn´t have been slippery. But .... the roads wouldn´t have been slippery.

Unless things don´t go as planned there´ll be no problem. As.... there´ll be no problem

I haven´t enjoyed myself so much since I was a child. Not ..............enjoyed myself so much.

If I didn´t have a fast car, I would have been late. If it .......................... I would have been late.

They had no idea they were being watched. Little ..... they were being watched.

If you happen to succeed I ´d be very impressed.Were ... I´d be very impressed.

If you don´t understand just ask. Should............................ just ask.

As well as being rich, he is also highly influential. Not ..... he is also influential.

If you applied now, there´s a good chance you´d get the job.Were ...................., there´s a good chance you´d get the job

Do not open this before christmas. On no ..........open this until Christmas.

You must not tell anybody. Under ........................ tell anybody.

I´d love to travel the World if I didn´t have to pay off the mortgage. Were ................................................ to pay off my mortgage I´d love to travel the World