| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] prevent [pron] from [verb] | 73 |
|
| 2 | [vb infin] [verb] [pron] from [verb] | 37 |
|
| 3 | [vb infin] prevent [pron] [prep] [verb] | 18 |
|
