1.   An analysis of how long it will take for all HIV-infected cells to die off.

2.   Dad was determined to get to the truth, no matter how long it took.

3.   Do a dummy run to see how long it will take.

4.   Having a will professionally drawn up is not a terrible ordeal and it need not take long to explain your wishes.

5.   I was taking too long to say something reassuring, standing there blinking in the bland afternoon sunlight.

6.   It takes too long to set up and the shutter speed is slow.

7.   No-one cared how long we had taken on the route.

8.   Officials are unsure how long it will take for Bonin to die.

9.   The programs take too long to load and try the patience of young pupils.

10.   There is a fixed rate for the job, regardless of how long it takes.