| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not sure that [pron] [verb] [prep] | 7 |
|
| 2 | not sure that [pers pn] [verb] [prep] | 7 |
|
| 3 | not sure that [pron] [verb] [prep] | 7 |
|
| 4 | not sure that [pron] [verb] [prep] | 7 |
|
| 5 | not sure that [pron] [vb base] [prep] | 5 |
|
