| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | police [vb base] be [v-ing] [art] | 8 |
|
| 2 | police [vb base] been [v-ing] [art] | 8 |
|
| 3 | police [vb base] [been] [v-ing] [art] | 8 |
|
| 4 | police have [be] [v-ing] [art] | 8 |
|
| 5 | police [vb base] [be] [v-ing] the | 5 |
|
