| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a number of [noun pl] | 7666 |
|
| 2 | a number of years | 437 |
|
| 3 | a number of ways | 279 |
|
| 4 | a number of reasons | 231 |
|
| 5 | a number of factors | 224 |
|
| 6 | a number of occasions | 172 |
|
| 7 | a number of issues | 105 |
|
| 8 | a number of times | 100 |
|
| 9 | a number of cases | 100 |
|
| 10 | a number of things | 87 |
|
| 11 | a number of problems | 82 |
|
| 12 | a number of points | 82 |
|
| 13 | a number of studies | 81 |
|
| 14 | a number of areas | 79 |
|
| 15 | a number of questions | 77 |
|
| 16 | a number of countries | 71 |
|
| 17 | a number of companies | 63 |
|
| 18 | a number of changes | 57 |
|
| 19 | a number of examples | 48 |
|
| 20 | a number of books | 45 |
|
| 21 | a number of advantages | 44 |
|
| 22 | a number of sources | 43 |
|
| 23 | a number of options | 43 |
|
| 24 | a number of levels | 35 |
|
| 25 | a number of features | 34 |
|
| 26 | a number of men | 33 |
|
| 27 | a number of instances | 31 |
|
| 28 | a number of items | 29 |
|
| 29 | a number of women | 29 |
|
| 30 | a number of proposals | 28 |
|
