| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] prevent it from [verb] | 5 |
|
| 2 | [modal v] prevent it [prep] [verb] | 5 |
|
| 3 | [vb mod] prevent it [prep] [verb] | 5 |
|
| 4 | [modal v] prevent it from [verb] | 5 |
|
| 5 | [modal v] prevent it [prep] [verb] | 5 |
|
| 6 | [modal v] prevent it [prep] [v-ing] | 5 |
|
