| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb base] n't know [prep] [adj] | 157 |
|
| 2 | [pron] [verb] n't know [prep] sure | 21 |
|
| 3 | [pron] [vb base] not know [prep] sure | 20 |
|
| 4 | [pron] [vb base] n't know [prep] sure | 20 |
|
| 5 | [pron] [vb base] n't [verb] [prep] sure | 20 |
|
| 6 | [pron] [vb base] [adv] know [prep] sure | 20 |
|
| 7 | [pron] [vb base] [not/n't] know [prep] sure | 20 |
|
