| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] have been [adj] | 1070 |
|
| 2 | which [modal v] have been [adj] | 141 |
|
| 3 | which it [modal v] have been | 17 |
|
| 4 | which it have been [adj] | 9 |
|
