| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh pn] is | 263 |
|
| 2 | to know [pron] is | 99 |
|
| 3 | [to-vb] [Wh pn] is | 68 |
|
| 4 | know [Wh pn] is | 61 |
|
| 5 | to know [Wh pn] be | 37 |
|
| 6 | to know [Wh pn] [be] | 37 |
|
| 7 | to know [Wh pn] [is] | 20 |
|
