| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be not [adj] | 304 |
|
| 2 | [adv] be [adv] sure | 107 |
|
| 3 | [adv] be [not/n't] sure | 24 |
|
| 4 | [adv] be not sure | 24 |
|
| 5 | [adv] [be] not sure | 5 |
|
