| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at [prep] | 742 |
|
| 2 | at risk [prep] | 522 |
|
| 3 | [vb pp] at risk | 90 |
|
| 4 | [vb pp] risk [prep] | 9 |
|
