| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be sure that [pron] | 644 |
|
| 2 | be that [pron] [prep] | 68 |
|
| 3 | be sure that [prep] | 34 |
|
| 4 | sure that [pron] [prep] | 29 |
|
| 5 | be sure [pron] [prep] | 23 |
|
