| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] to be sure of | 17 |
|
| 2 | [pron] [vb base] to be sure of | 9 |
|
| 3 | [pron] want to be sure of | 8 |
|
| 4 | [pron] [vb past] to be sure of | 7 |
|
| 5 | [pron] have to be sure of | 5 |
|
| 6 | [pron] want to be sure of | 5 |
|
