| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pers pn] know [pron] [verb] to | 18 |
|
| 2 | [verb] [pers pn] [verb] [pron] happen to | 18 |
|
| 3 | [verb] [pron] know [pron] happen to | 12 |
|
| 4 | [verb] [pers pn] know [pron] happen [prep] | 12 |
|
