Present indefinite sentence
- I play tennis.
- She does not play tennis.
- Does he play tennis?
- The train leaves every morning at 8 AM.
- The train does not leave at 9 AM.
- When does the train usually leave?
- She always forgets her purse.
- He never forgets his wallet.
- Every twelve months, the Earth circles the Sun.
- Does the Sun circle the Earth?
- You are learning English now.
- You are not swimming now.
- Are you sleeping?
- I am sitting.
- I am not standing.
- Is he sitting or standing?
- They are reading their books.
- They are not watching television.
- What are you doing?
- Why aren't you doing your homework?
- I have seen that movie twenty times.
- I think I have met him once before.
- There have been many earthquakes in California.
- People have traveled to the Moon.
- People have not traveled to Mars.
- Have you read the book yet?
- Nobody has ever climbed that mountain.
- A: Has there ever been a war in the United States?
- B: Yes, there has been a war in the United States.
Present perfect continuous tense
- They have been talking for the last hour.
- She has been working at that company for three years.
- What have you been doing for the last 30 minutes?
- James has been teaching at the university since June.
- We have been waiting here for over two hours!
- Why has Nancy not been taking her medicine for the last three days?
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