1. I enjoy reading cookery books very much.
I get a lot of pleasure from reading cookery books.
2. It’s the most marvelous cave I’ve ever seen.
I've never seen such a marvelous cave.
3. "Would you like to go to the concert with us tonight?", they said to me.
They invited me to go to the concert with them that night.
4. It’s probably better to see a specialist about this problem.
It might be better to see a specialist about this problem.