| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [to-vb] [pron] | 20743 |
|
| 2 | [vb past] [pron] know | 1887 |
|
| 3 | [to-vb] [pron] know | 474 |
|
| 4 | [vb past] [to-vb] know | 20 |
|
