| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [prep] [det] | 291 |
|
| 2 | [vb past] [prep] [det] year | 153 |
|
| 3 | who [vb past] [det] year | 24 |
|
| 4 | who [prep] [det] year | 14 |
|
