| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] not know [noun] | 117 |
|
| 2 | [vb past] not know this | 35 |
|
| 3 | not know this [noun] | 21 |
|
| 4 | [vb past] not this [noun] | 11 |
|
