1. Present simple:
- She works at the museum.
- He isn't a doctor. He is a teacher.
- Does he know that we are here?
2. Present continuous:
- She is reading an interesting book.
- They are going to the cinema.
- Are you hiding something?
3. Present perfect:
- I have lost my key.
- She hasn't written to me for a month.
- Have you ever been to Canada?
4. Present perfect continuous:
- She has been waiting here for an hour.
- They haven't been working hard for today.
- Has she been waiting here for an hour?
1. Present simple:
- She works at the museum.
- He isn't a doctor. He is a teacher.
- Does he know that we are here?
2. Present continuous:
- She is reading an interesting book.
- They are going to the cinema.
- Are you hiding something?
3. Present perfect:
- I have lost my key.
- She hasn't written to me for a month.
- Have you ever been to Canada?
4. Present perfect continuous:
- She has been waiting here for an hour.
- They haven't been working hard for today.
- Has she been waiting here for an hour?