| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [verb] [Wh det] be | 165 |
|
| 2 | [verb] know [Wh det] be | 149 |
|
| 3 | [vb past] know [pron] be | 126 |
|
| 4 | [vb past] know [Wh det] [be] | 31 |
|
