| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what [is] [prep] | 382 |
|
| 2 | know [pron] [is] [prep] | 202 |
|
| 3 | know what [be] [prep] | 142 |
|
| 4 | know what [is] [prep] | 98 |
|
