| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | prevent [pers pn] [prep] [verb] | 645 |
|
| 2 | [pers pn] prevent [pers pn] [prep] | 20 |
|
| 3 | [pers pn] prevent [pers pn] [verb] | 9 |
|
