1. This is the most delicious cake I've ever tasted.
=> I've never tasted a more delicious cake than this.

2. I've never met any more dependable person than George.
=> George is the most dependable person I've ever met.

3. There isn't anybody as kind-hearted as your mother.
=> Your mother is the most kind-hearted person.

4. There is no better teacher in this school than Mr John.
=> Mr John is the best teacher in this school.

5. Have you got any bigger than that one?
=> Is this the biggest one you have?