We've been together for ten years.
How long have they been talking?
A LONG TIME
12 O'CLOCK
I WAS A CHILD
How long have you been working here?
Have you been listening?
How long have you worked here?
He hasn't been waiting for long.
TWO HOURS
SEVEN DAYS
They've been married since 2010.
He hasn't worked here long.
Has the alarm been ringing for long?
He hasn't been working here long.
MY BIRTH
SIX MONTHS
Have they known each other long?
THE BEGINNING
The cake has been baking for 35 minutes.
We've had this car for 7 months.
FIVE MINUTES
THIS MORNING