| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if it fails [verb] so | 5 |
|
| 2 | if it fail do so | 5 |
|
| 3 | if it fail to do so | 5 |
|
| 4 | if it fail [to-vb] so | 5 |
|
| 5 | if it fail [verb] so | 5 |
|
