| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] [pers pn] do n't know | 9 |
|
| 2 | 's [adv] [pron] do n't know | 6 |
|
| 3 | [is] [adv] i do n't know | 6 |
|
| 4 | [is] [adv] i do n't know | 6 |
|
