| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb base] [been] [vb pp] [prep] | 586 |
|
| 2 | [det] [vb base] [been] [vb pp] [prep] | 181 |
|
| 3 | [det] which [vb base] [been] [vb pp] | 32 |
|
| 4 | [det] which [vb base] [vb pp] [prep] | 8 |
|
