| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not know if it [is] | 84 |
|
| 2 | not know it [is] [adv] | 16 |
|
| 3 | know if it [is] [adv] | 16 |
|
| 4 | not if it [is] [adv] | 5 |
|
