| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] [pron] [prep] [verb] | 600 |
|
| 2 | [vb mod] prevent [pron] [prep] [verb] | 63 |
|
| 3 | [modal v] prevent [pron] [prep] [verb] | 63 |
|
