| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] sure if she [vb past] | 11 |
|
| 2 | not sure if she [vb past] | 9 |
|
| 3 | [not/n't] sure if she [vb past] | 9 |
|
| 4 | not sure if she [vb past] | 6 |
|
