| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] it [modal v] be | 669 |
|
| 2 | at [Wh det] it be | 79 |
|
| 3 | at [Wh det] it [modal v] | 32 |
|
| 4 | at [Wh det] [modal v] be | 23 |
|
