| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] to prevent it [verb] | 26 |
|
| 2 | to prevent it [prep] [verb] | 26 |
|
| 3 | [noun] to prevent it [prep] | 18 |
|
| 4 | [noun] it [prep] [verb] | 7 |
|
