| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh det] [be] [prep] | 639 |
|
| 2 | know [Wh det] [be] [prep] | 143 |
|
| 3 | [vb infin] [Wh det] [be] [prep] | 141 |
|
| 4 | know [pron] [be] [prep] | 131 |
|
