NEVER
1) I have never been in Grodno.
2) I have never eat an ice cream.
3) We have never worked together.
4) I have never had an apartment in the city center.
5) She's never shouted at them.
EVER
1) Have you ever been to Thailand?
2) Have you ever spoken English with a native speaker?
3) I have ever been in zoo.
4) Have you ever seen a elephant?
5) Have you ever been to Scotland?