Use the present perfect to make true sentences for you.

1. write a letter in English

2. phone the emergency services

3. lose your mobile

4. forget to post an important letter

5. buy a book online

6. have a virus on your computer

1. I haven't written a letter in English.

2. I haven't phoned the emergency services.

3. I haven't lost my mobile.

4. I haven't forgotten to post an important letter.

5. I haven't bought a book online.

6. I haven't had a virus on my computer.