| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [modal v] have been [adj] | 141 |
|
| 2 | [prep] which [modal v] have been | 26 |
|
| 3 | [prep] which have been [adj] | 18 |
|
| 4 | [prep] which [modal v] have [adj] | 5 |
|
