| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know [pron] [verb] to | 263 |
|
| 2 | [verb] [pron] happened to | 214 |
|
| 3 | know [pron] [vb past] to | 145 |
|
| 4 | know [pron] happened [prep] | 94 |
|
| 5 | know [pron] happen to | 87 |
|
