| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] have been [prep] | 230 |
|
| 2 | what it [modal v] have been | 45 |
|
| 3 | what it have been [prep] | 39 |
|
| 4 | what [modal v] have been [prep] | 13 |
|
