Present Perfect / Present Perfect Continuous 1. She (to be) ill since last week.
2. He (to know) me since childhood.
3. I (to try) to understand you for hald an hour.
4. He (to be) in London for three years.
5. She (to look) for her key since she came home.
6. They (to be) here since two o'clock.
7. My sister (to sleep) for ten hours.
8. We (to be) married since 1977.
1. She has been ill since last week.
2. He has known me since childhood.
3. I have been trying to understand you for half an hour.
4. He has been in London for three years.
5. She has been looking for her key since she came home.
6. They have been here since two o'clock.
7. My sister has been sleeping for ten hours.
8. We have been married since 1977.