1) I haven't already posted the letter.
Have I already posted the letter?
2) She hasn't already started her new job.
Has she already started her new job?
3) He hasn't gone to America.
Has he gone to America?
4) They haven't visited India twice.
Have they visited India twice?
5) He hasn't smoked five cigarettes today.
Has he smoked five cigarettes today?
6) My mother hasn't always worked hard.
Has my mother always worked hard?
7) I haven't seen a lot of my former classmates recently.
Have I seen a lot of my former classmates recently?
8) Tom hasn't lost all his money.
Has Tom lost all his money?
9) Oh, I haven't forgotten about my Dad's birthday.
Have I forgotten about my Dad's birthday?
10) Mr.Jenkins hasn't just retired from his job.
Has Mr.Jenkins just retired from his job?
11) They haven't always been too strict with their children.
Have they always been too strict with their children?
12) I haven't written ten postcards.
Have I written ten postcards?