| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know when [pron] | 869 |
|
| 2 | know when [pers pn] | 809 |
|
| 3 | know [adv] it | 737 |
|
| 4 | [verb] when it | 175 |
|
| 5 | know when it | 81 |
|
