| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [is] i do n't know | 7 |
|
| 2 | [pron] 's i do n't know | 7 |
|
| 3 | it [is] i do n't know | 5 |
|
| 4 | it [is] i do n't know | 5 |
|
