| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [conj] [pron] [is] [v-ing] | 812 |
|
| 2 | know [conj] [pron] [be] [v-ing] | 547 |
|
| 3 | know [conj] [pron] [is] [verb] | 121 |
|
