| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh det] [is] | 4183 |
|
| 2 | know [pron] [is] | 2137 |
|
| 3 | [vb base] [Wh det] [is] | 1011 |
|
| 4 | know [Wh det] [is] | 862 |
|
| 5 | know [Wh det] [be] | 308 |
|
