| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] police [noun] | 1561 |
|
| 2 | [prep] [art] [noun] force | 1275 |
|
| 3 | [prep] [art] [noun pl] force | 146 |
|
| 4 | [prep] [art] police force | 145 |
|
| 5 | [prep] [art] police force | 145 |
|
