1.   And they claim that the knock-on effect is that weather patterns change.

2.   But weather patterns change in a haphazard, inconsistent way.

3.   There is ample evidence that climate patterns are changing.

4.   Weather patterns have been changing as a result of global warming.

5.   Weather patterns have changed in recent years.

6.   However, as land use patterns change over time, zone boundaries will need changing, adding to the procedural complexity.

7.   Although fragrance sales are brisk in December, scents sell year-round, and buying patterns have changed in the last five years.

8.   Although many young Americans claim not to believe in the future of Social Security, it is hard to see their saving patterns changing accordingly.

9.   Analog signals are sent from the TV-station tower in electromagnetic waves whose size, shape and intensity are modified as the original images and sound patterns change.