| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [unc] [pers pn] do n't know | 300 |
|
| 2 | [is] [pers pn] do n't know | 38 |
|
| 3 | [is] [unc] [pers pn] do n't | 16 |
|
