Ex 1.
1. I learn English words everyday.
2. I am learning English words. Don't disturb me.
3. I have been learning English words already for an hour.
4. I have learned the words. Examine me.
ex2.
1. haven't read it
2. wind up
3. have you seen
4. haven't bought
5. do
6. has been telling
7. have already translated
8. have
9. works // gets
10. have bought