| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] about [prep] [art] [num] | 10 |
|
| 2 | [vb pp] about [prep] the [num] | 8 |
|
| 3 | [vb pp] about [prep] the [num] | 8 |
|
| 4 | [vb pp] about by [art] [num] | 7 |
|
| 5 | brought about [prep] [art] [num] | 7 |
|
