| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can not be [vb pp] to happen | 5 |
|
| 2 | can not be allowed to happen | 5 |
|
| 3 | can not be allow to happen | 5 |
|
| 4 | can not be [verb] to happen | 5 |
|
