Helen … (to wash) the dishes for fifteen minutes.
has been washing
Our teacher … writing something on the blackboard.
is
They (build) this house for more than a year.
have been building
Sue (do) homework at 5 o’clock tomorrow
will be doing
We (wait) for the bus at the bus-stop.
are waiting
Everybody was very hungry because they (work) all day without a break for lunch.
had been working
By the end of next month we (live) in this city for ten years.
will have been living
I (not to see) him since 1997.
I have not seen.
We (clean) the house by the time of your arrival tomorrow.
will have cleaned
We (to play basketball) at 6 o’clock last Sunday.
were playing
By next Friday Henry (train) for the competition for ten months.
will have been training
He (to come) a moment ago.
He came
Nick and Jack (drive) to Berlin at this time next Monday
will be driving
Our boss (sign) the documents tomorrow morning.
will sign
Helen ( to play tennis) tennis for an hour and a half before Tom came to the court.
had been playing tennis
I (come) to the office before lunch time.
had come
Ann (to take) a shower before going to bed.
takes
When they (return) from their trip?
will they return
She (talk) with her friend for forty minutes yesterday
was talking
When you (to meet) him?
did you meet
The rain (to stop) but a cold wind is still blowing.
The rain has stopped.
Brian (to return books to the library) before last Thursday.
had returned
She (to get) up at seven o'clock.
gets
Jim (write) the report by next Thursday.
will have written