| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] prevent [pron] [prep] [verb] | 74 |
|
| 2 | [not/n't] prevent [pron] [prep] [verb] | 71 |
|
| 3 | [verb] [not/n't] prevent [pron] [prep] | 51 |
|
| 4 | [verb] [not/n't] prevent [pron] [verb] | 16 |
|
| 5 | [verb] [not/n't] [pron] [prep] [verb] | 6 |
|
