| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] know [adv] it [is] [prep] | 5 |
|
| 2 | [not/n't] know [adv] it [is] [prep] | 5 |
|
| 3 | n't know [adv] it [is] [prep] | 5 |
|
