| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] not know precisely [Wh det] | 9 |
|
| 2 | do not know precisely [Wh det] | 9 |
|
| 3 | do not know precisely [Wh det] | 5 |
|
| 4 | [vb base] not know precisely [Wh det] | 5 |
|
