1.There isn't any meat left in the freezer.««There is some meat left in the freezer.
2.Skunks often visit me when I go camping!«« Skunks never visit me when I go camping!
3.Have you ever seen any polar bears?«« I have never seen any polar bears.
4. Aren't there any children here?«« Are there children here?
5.We can't find any good books to read. «« We can find some good books to read.