| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | prevent from [verb] [prep] the | 22 |
|
| 2 | prevent from [v-ing] [prep] the | 22 |
|
| 3 | prevented from [verb] [prep] the | 21 |
|
| 4 | prevent from [verb] in the | 6 |
|
| 5 | prevent from [verb] to the | 5 |
|
