| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] not know which [noun] | 65 |
|
| 2 | [verb] not [adv] know [noun] | 29 |
|
| 3 | [verb] not [adv] know which | 9 |
|
| 4 | not [adv] know which [noun] | 6 |
|
