| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [vb pp] [prep] [det] | 676 |
|
| 2 | which [vb base] been [vb pp] [prep] | 586 |
|
| 3 | which [vb base] [vb pp] [prep] [det] | 35 |
|
