| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] it [modal v] have been [prep] | 6 |
|
| 2 | [adj] it [vb mod] have been [prep] | 6 |
|
| 3 | [adj] it [modal v] have been [prep] | 6 |
|
| 4 | [adj] it [modal v] have been [prep] | 6 |
|
