1.   A complete list is not possible because of the large number of possible combinations.

2.   As you can imagine, there are many possible combinations.

3.   Now let us look at the possible combinations.

4.   The design of an experiment typically takes two of these factors and combines them in all possible combinations.

5.   This distinction, coupled with the previous one, yields four possible combinations of fact, each needing discussion.

6.   He programmed his computer to compare all the possible combinations.

7.   After running through the numbers in every possible combination, we finally hit on a solution.

8.   The figure therefore gives the possible combinations of project outcome and additional information.