| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] sure [that] [det] [noun] | 45 |
|
| 2 | [prep] [be] [that] [det] [noun] | 18 |
|
| 3 | [prep] [be] sure [that] [noun] | 11 |
|
| 4 | [prep] [be] sure [that] [det] | 8 |
|
