| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] police force | 145 |
|
| 2 | by [art] [noun] force | 126 |
|
| 3 | by [art] police [noun] | 122 |
|
| 4 | by [art] police force | 5 |
|
| 5 | by [art] police force | 5 |
|
| 6 | by [art] [noun pl] force | 5 |
|
