| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it [prep] [verb] [adv prt] | 52 |
|
| 2 | prevent [pron] [prep] [verb] [adv prt] | 50 |
|
| 3 | prevent it [prep] [verb] [adv] | 20 |
|
