| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know what [pers pn] [be] [v-ing] | 617 |
|
| 2 | what [pers pn] [be] [v-ing] to | 235 |
|
| 3 | know [pers pn] [be] [v-ing] to | 22 |
|
| 4 | know what [be] [v-ing] to | 18 |
|
