| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [been] [prep] [art] | 137 |
|
| 2 | [vb past] [been] [prep] [art] [det] | 39 |
|
| 3 | who [vb past] [prep] [art] [det] | 34 |
|
| 4 | who [vb past] [been] [prep] [det] | 11 |
|
