| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [modal v] be [prep] | 414 |
|
| 2 | [adv] [Wh det] [modal v] be | 165 |
|
| 3 | [adv] [modal v] be [prep] | 151 |
|
| 4 | [adv] [Wh det] [modal v] [prep] | 12 |
|
