| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [been] [vb pp] at [art] | 12 |
|
| 2 | who [vb past] been [vb pp] at [art] | 12 |
|
| 3 | who [vb past] [been] [vb pp] at the | 12 |
|
| 4 | who [vb past] [been] [vb pp] at [art] | 12 |
|
| 5 | who [vb past] [been] [vb pp] at the | 12 |
|
| 6 | who had [been] [vb pp] at [art] | 11 |
|
