| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [prep] [noun] | 1829 |
|
| 2 | [vb past] [been] [prep] [noun] | 1385 |
|
| 3 | which [vb past] [been] [prep] | 113 |
|
| 4 | which [vb past] [been] [noun] | 27 |
|
