| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb base] been [prep] | 31 |
|
| 2 | which have [been] [prep] | 31 |
|
| 3 | which [vb base] [been] in | 13 |
|
| 4 | which [vb base] [been] under | 5 |
|
