| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which details [vb base] [been] | 5 |
|
| 2 | which details have [be] | 5 |
|
| 3 | which details [vb base] been | 5 |
|
| 4 | which details [vb base] be | 5 |
|
