| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] to prevent [pron] [noun pl] [prep] [verb] | 5 |
|
| 2 | to prevent [pron] [adj] [noun pl] [prep] [verb] | 6 |
|
| 3 | to prevent [pron] [adj] [noun pl] [prep] [verb] | 5 |
|
