| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [pron] [prep] [verb] | 657 |
|
| 2 | [adv] prevent [pron] [prep] [verb] | 52 |
|
| 3 | [adv] [to-vb] [pron] [prep] [verb] | 33 |
|
| 4 | [adv] to prevent [pron] [prep] [verb] | 9 |
|
