How long have you been waiting.
I met, I had not seen.
I shall not yet be sleeping.
You will be, you do not take.
The sun had set, it was beginning.
I came, my sister had already returned, was sitting.
He had smoked, had looked, he heard.
Andrew saw, he entered, she was sitting, she had greatly changed, looked.
She has just received.
He had just approached, she entered.
He has been writing, he says, he will soon finish, he is thinking.
The nurse has put (is putting).
He had been working.
Hardly had I gone, I remembered, I had forgotten.
It is, haven’t you finished.