Here are the top ten list of common mistakes that Koreans make:

1. I work very hardly. -> I work very hard.

2. I have an appointment/promise with a friend. -> I have plans with a friend.

3. I was boring on the weekend. -> I was bored on the weekend.

4. She looks like fat. -> She looks fat.

5. Yesterday I got stress. -> Yesterday, I was stressed.

6. I had a lunch with my friends. -> I had lunch with my friends.

7. I was today tired. -> I was tired today.

8. Are you drunken? -> Are you drunk?

9. I am going to home. -> I am going home.

10. He was died. -> He died.