| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] know [Wh det] happen to [noun prp] | 5 |
|
| 2 | [pers pn] know what happen to [noun prp] | 5 |
|
| 3 | [pers pn] know [pron] happened to [noun prp] | 5 |
|
| 4 | [pers pn] know what happen to [noun prp] | 5 |
|
| 5 | [pers pn] know [pron] happen to [noun prp] | 5 |
|
