| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] [adv] | 86239 |
|
| 2 | [to-vb] [pron] [adv] | 10899 |
|
| 3 | prevent [pron] [adv] | 25 |
|
| 4 | to prevent [pron] [adv] | 12 |
|
