| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [be] [v-ing] [prep] | 2444 |
|
| 2 | know what [pron] [be] [v-ing] | 1573 |
|
| 3 | know [pron] [be] [v-ing] [prep] | 567 |
|
| 4 | know what [pron] [be] [prep] | 312 |
|
| 5 | know what [be] [v-ing] [prep] | 118 |
|
