| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] officer [Wh pn] | 16 |
|
| 2 | [prep] a [noun] officer who | 16 |
|
| 3 | [prep] a [noun] officer [Wh pn] | 16 |
|
| 4 | [prep] a [noun] officer [Wh pn] | 13 |
|
| 5 | [prep] a [noun pl] officer [Wh pn] | 9 |
|
| 6 | [prep] a police officer [Wh pn] | 7 |
|
| 7 | [prep] a police officer [Wh pn] | 7 |
|
| 8 | by a [noun] officer [Wh pn] | 7 |
|
| 9 | by a [noun] officer [Wh pn] | 7 |
|
| 10 | [prep] a [noun sg] officer [Wh pn] | 5 |
|
