| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] not fail to be | 29 |
|
| 2 | can not fail to be | 18 |
|
| 3 | can not fail to be | 18 |
|
| 4 | could not fail to be | 11 |
|
| 5 | could not fail to be | 11 |
|
