| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [modal v] [prep] | 601 |
|
| 2 | [modal v] pass [prep] | 266 |
|
| 3 | [Wh det] pass [prep] | 145 |
|
| 4 | [Wh det] [modal v] pass | 23 |
|
