| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] have been [prep] | 230 |
|
| 2 | [Wh det] it [modal v] have been | 65 |
|
| 3 | [Wh det] it have been [prep] | 44 |
|
| 4 | [Wh det] [modal v] have been [prep] | 42 |
|
| 5 | [Wh det] it [modal v] have [prep] | 6 |
|
