| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can not be [adj] of | 47 |
|
| 2 | can [adv] be sure of | 30 |
|
| 3 | [modal v] not be sure of | 20 |
|
| 4 | can not be sure [prep] | 18 |
|
| 5 | can [not/n't] be sure of | 17 |
|
| 6 | can not be sure of | 17 |
|
| 7 | can not be sure of | 12 |
|
| 8 | can not [be] sure of | 12 |
|
| 9 | can not [be] sure of | 12 |
|
