| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] sure that [pron] | 170 |
|
| 2 | sure that [pron] do | 135 |
|
| 3 | [not/n't] that [pron] do | 77 |
|
| 4 | [not/n't] sure [pron] do | 36 |
|
