| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] it [modal v] [vb infin] | 659 |
|
| 2 | be [Wh det] [modal v] [vb infin] | 104 |
|
| 3 | be [Wh det] it [modal v] | 49 |
|
| 4 | be it [modal v] [vb infin] | 38 |
|
