| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [prep] a [noun] | 405 |
|
| 2 | [vb past] [prep] a [noun] ['s] | 195 |
|
| 3 | who [vb past] [prep] [noun] ['s] | 90 |
|
| 4 | who [vb past] a [noun] ['s] | 26 |
|
