| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] not know exactly [Wh det] | 10 |
|
| 2 | [vb past] [not/n't] know exactly [Wh det] | 10 |
|
| 3 | [vb past] [adv] know exactly [Wh det] | 10 |
|
| 4 | [vb past] [adv] know exactly what | 10 |
|
| 5 | did [adv] know exactly [Wh det] | 10 |
|
| 6 | [vb past] n't know exactly [Wh det] | 8 |
|
