21.   Of course the roof leaked and the oven never worked.

22.   Or, as a real estate broker might put it, the roof will never leak.

23.   Over time, however, the gaps will open up again and the roof will leak again.

24.   Q. My flat garage roof is leaking badly.

25.   Roofs leak.

26.   Roofs leak in many of the buildings.

27.   Roofs leaked.

28.   She got plaster in her eye because the roof was leaking and the plaster came loose upstairs.

29.   The dining hall roof leaks.

30.   The new roof leaked, too.