| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] time | 268 |
|
| 2 | [prep] [v-ing] police | 43 |
|
| 3 | [v-ing] police time | 9 |
|
| 4 | [prep] police time | 6 |
|
