1.   Because of tax changes the amount you can invest has changed over the years.

2.   Images that people have of themselves change over time.

3.   In addition, the research will assess the way in which the economic expectations of elderly people have changed over the twentieth century.

4.   It is as if the public recognizes that society has changed over the Decade but does not much like what sees.

5.   My feelings have changed over the years as the system acquired first more memory and then bigger and faster processors.

6.   Our viewing and musical tastes have changed over the past three Decades.