| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [adv] sure [Wh det] [pron] | 56 |
|
| 2 | [not/n't] sure [Wh det] [pron] [vb mod] | 17 |
|
| 3 | [not/n't] [adv] sure [pron] [vb mod] | 17 |
|
| 4 | [not/n't] [adv] [Wh det] [pron] [vb mod] | 13 |
|
| 5 | [adv] sure [Wh det] [pron] [vb mod] | 6 |
|
