| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] know [Wh det] [is] [prep] | 5 |
|
| 2 | [pers pn] [adv] know [Wh det] [is] [prep] | 5 |
|
| 3 | [adv] know [Wh det] [is] [verb] [prep] | 6 |
|
| 4 | [adv] know [Wh det] [is] [v-ing] [prep] | 5 |
|
