| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [prep] [art] [noun pl] force | 7 |
|
| 2 | [be] [vb pp] [prep] [art] police force | 7 |
|
| 3 | be [vb pp] [prep] [art] [noun pl] force | 7 |
|
| 4 | [be] [vb pp] [prep] the [noun pl] force | 5 |
|
