| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb mod] not fail | 61 |
|
| 2 | [pron] [vb mod] not to | 54 |
|
| 3 | [vb mod] not fail to | 29 |
|
| 4 | [pron] [vb mod] fail to | 10 |
|
