What are you doing, are you writing, I have written, I am working, when did you write, I finished.
I have already had.
What’s the weather like? Is it still raining? — No, it has stopped raining.
I have lost.
I have not met.
Nina has just finished.
Where is Sergei, he has gone, he left.
What are you reading, I am reading.
They read, have you read.
My watch has stopped, there is.
Have you seen, I saw.
Have you heard, I have, when did you hear, I heard.
You have changed, has anything happened.