| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] be | 12902 |
|
| 2 | [vb past] [adv] know | 5152 |
|
| 3 | [adv] know be | 107 |
|
| 4 | [vb past] know be | 12 |
|
