| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [noun] [prep] [verb] | 9957 |
|
| 2 | prevent [pron] [prep] [verb] | 138 |
|
| 3 | prevent [noun] [prep] [verb] | 43 |
|
| 4 | prevent [pron] [noun] [prep] | 14 |
|
